The mouth-watering Champions League semi-final between Juventus and Real Madrid on Tuesday night sees a reunion of four former Manchester United stars, with another watching on from the stands.

Cristiano Ronaldo and Javier Hernandez, who is on loan from United this season, will feature in the visiting Real Madrid squad, while Patrice Evra and Carlos Tevez may line-up for Juventus. Paul Pogba is currently ruled out with a hamstring injury and will have a watching brief in Turin.

It's fair to say that United fans, at various low points during this season, will have wished each of the five were still at their disposal.

But how have they got on since leaving Old Trafford - have their careers taken off or fallen away?

CARLOS TEVEZ

(Juventus; Played for Manchester United 2007-2009)

The Argentine arrived at Old Trafford from West Ham following a complex and protracted transfer saga in the summer of 2007 and was instantly popular, scoring 19 important goals as United won the Premier League and the Champions League in his debut season.

But he fell out of favour with Sir Alex Ferguson in his second year and the offer of a new contract wasn't forthcoming despite United fans wanting to keep him.

Carlos Tevez celebrates after scoring for Juventus in their win over Fiorentina last week

The Argentine striker has certainly retained the scoring touch since joining Juve in 2013

Despite helping United to another Premier League title and a second straight Champions League final, he was allowed to leave and Manchester City stepped in, prompting the famous 'Welcome to Manchester' billboard.

Tevez started his time with City in prolific form, scoring 29 times in his debut season and 23 in the next, winning the FA Cup and then the Premier League, but trouble was brewing off the field with rumours of a fall-out with manager Roberto Mancini.

This culminated with the infamous incident at Bayern Munich in September 2011 when Tevez refused to come off the bench as a second-half substitute and was placed on 'gardening leave'.

He left City in June 2013, joining Juventus and has continued to score at a prolific rate - with 49 in 90 matches in all competitions so far.

This has won him two Serie A medals. He scored in both legs of the quarter-final win over Borussia Dortmund and is highly-regarded by the club and fans alike.

Sir Alex Ferguson introduces Tevez after his move from West Ham in the summer of 2007

Tevez celebrates after scoring against Tottenham in an FA Cup fourth-round tie in January 2008

Tevez's first season at Old Trafford ended in him lifting the European Cup after United beat Chelsea

Tevez made this gesture towards Ferguson and the Manchester United board after scoring in the derby with City but despite appeal from the fans, they didn't offer the striker a new contract

PATRICE EVRA

(Juventus; Played for Manchester United 2006-2014)

France left back Evra enjoyed nine highly-successful seasons at Old Trafford and was an integral part of five Premier League triumphs, three League Cup wins and their Champions League success in 2008.

He was named in the PFA Premier League Team of the Year on three occasions and, at his best, was rightly regarded as one of the best in his position in the world.

As well as his defensive responsibilities, Evra was a formidable attacking threat and the fact he played in 379 matches for United showed how highly-regarded he was by Sir Alex Ferguson.

Despite having a year remaining on his contract, Evra decided to leave for Juventus last summer for a £1.2m fee.

At the age of 33, Evra continues to play an important role and has featured in 20 Serie A and seven Champions League matches for Juventus during his debut season.

Patrice Evra in action for Juventus in their win over Fiorentina last week

The French left back shares a joke with Tevez in training as they prepare for the visit of Real Madrid

Patrice Evra celebrates with Cristiano Ronaldo after scoring in United's 7-1 rout of Roma in 2007

Evra lifts the League Cup after United defeated Aston Villa at Wembley in 2010

BIG MATCH DETAILS Tuesday May 5 Juventus vs Real Madrid Juventus Stadium, 7.45pm, Live on ITV 1 Wednesday May 13 Real Madrid vs Juventus Santiago Bernabeu, 7.45pm, Live on Sky Sports 1 and 5 Advertisement

PAUL POGBA

(Juventus; Played for Manchester United 2009-2012)

Although Pogba will not play against Real Madrid owing to a hamstring injury, his rise has been meteoric since leaving United in 2012.

The central midfielder arrived at United's academy in 2009 and was earmarked as a talent that would eventually be brought through into the first team.

However, despite considerable success at youth team and reserve level, Pogba made only a handful of first-team appearances for Ferguson's side and decided to seek his fortune elsewhere.

Juventus were the lucky beneficiaries, but his departure was acrimonious, with Ferguson saying that Pogba 'showed us no respect at all'.

Paul Pogba in action for Juventus in a league match with Napoli back in January

There were high hopes for Pogba at Old Trafford but first-team chances were limited and he left in 2012

The France midfielder is set to miss the first leg of the Real Madrid tie with a hamstring injury

Few predicted how quickly Pogba, now also a fully-fledged France international, would establish himself in the Juve team and he has been an a regular pretty much since his arrival.

Pogba has been instrumental in helping Juve to three consecutive Scudettos and now wants to convert this domestic dominance into European honours.

His success has led to speculation that cash-rich United may attempt to lure him back this summer but it would take a bid somewhere north of £60m to do it.

CRISTIANO RONALDO

(Real Madrid; Played for Manchester United 2003-2009)

The world's best player (in the eyes of many) was made at Manchester United but has gone on to scale astronomical heights since his move to Real Madrid in 2009.

Ronaldo arrived at Old Trafford as an untried but prodigious 17-year-old in 2003 and dazzled with his step-overs and trickery on debut against Bolton.

It was immediately apparent he would be a pivotal player for years to come and so it proved as, under the careful guidance of Ferguson, he matured into United's 'box office' player.

Cristiano Ronaldo trains at the Juventus Stadium on the eve of the semi-final first leg

Ronaldo celebrates after scoring in Real Madrid's weekend win at Sevilla in La Liga

In all, Ronaldo scored 118 goals in 292 appearances for United, winning three Premier League titles, the FA Cup, three League Cups, the Champions League and the FIFA Club World Cup as well as a succession of individual honours.

It was always going to take an eye-watering sum to prise the Portuguese from United and Real's then-world-record £80m bid in 2009 did just that.

Since then, Ronaldo's trajectory has just gone up and up. His scoring feats are legendary with the total currently standing at 305 in 295 games, and he has often performed at such a level as to be unplayable.

Crowned the world's best player in the last two years, Ronaldo's dedication to his art has brought further rewards in the form of the La Liga title in 2012 and his crowning achievement, the Champions League last season.

His place in legend already assured, Ronaldo, now 30, has plenty of time to tick the remaining boxes in his career.

Ronaldo celebrates after scoring a stunning goal against Porto en route to the 2009 Champions League final

The Portuguese lifted the Premier League trophy on three occasions during his time at Old Trafford

But his finest hour with United came when helping them to the Champions League in 2008

Ronaldo with his mentor Sir Alex Ferguson, who helped him develop into one of the world's greatest players

JAVIER HERNANDEZ

(On loan at Real Madrid from Manchester United)

The Mexican 'Little Pea' was unlikely to feature in Louis van Gaal's plans this season and was loaned out to Real Madrid on deadline day as Radamel Falcao arrived at Old Trafford.

Hernandez has found opportunities limited in such a star-studded team but he has scored eight times in his 20 outings this season.

The most noteworthy moment was his late winner against bitter rivals Atletico Madrid in the second leg of the quarter-final.

His future at Old Trafford is uncertain, though Hernandez had done very little wrong in his four seasons there, scoring 59 goals in 152 appearances - a decent return.

He would love to show Van Gaal what he's missing by helping Real retain their European crown.

Javier Hernandez has found the net on eight occasions during his loan season at Real Madrid

Hernandez had a very good scoring record for Manchester United, with 59 goals in 152 appearances