• Tottenham complete move for Brazilian winger from PSG • Dozens of moves go through on the last day of the window

Mauricio Pochettino has signed the Paris Saint-Germain winger Lucas Moura for £25m on a five-and-a-half- year deal. The Tottenham Hotspur manager had wanted to add pace and finishing power to his attacking options and he came to see Moura as an exciting opportunity.

The 25-year-old, who joined PSG from São Paulo in 2013 for £38m and played 229 times, scoring 46 goals, has not played in the Champions League in this campaign and so is eligible to feature for Spurs. Moura has struggled this season after PSG signed Neymar and Kylian Mbappé last summer. But Pochettino believes that the player has not lost anynone of his ability and is confident that he Moura can shine in north London for the club.

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All six of Moura’s appearances for PSG this season have been off the bench, and the Brazilian said: “The most important thing is to play. Here I think it’s a new challenge to show my talent, my quality. It’s also a big club. The history of the club is very, very interesting. It’s a pleasure to play for Tottenham. Now I need to enjoy, to work hard and to show my quality.”

Stoke City presented their £14m signing Badou Ndiaye at half-time against Watford. The 27-year-old Senegal midfielder joins from Galatasaray. Crystal Palace bought the Norway striker Alexander Sørloth from Midtjylland for an initial €10m (£8.7m), with a possible €8m to follow in add-ons for the 22-year-old. Palace’s attempts to buy Ibrahim Amadou failed because Lille were unable to find a replacement for the midfielder, who had travelled to London in anticipation of signing.

Swansea spent £18m to re-sign André Ayew from West Ham 18 months after he left south Wales to join the Hammers for £20m. He joins his younger brother Jordan at Swansea and scored 12 goals in 50 games – only 31 of which were starts – for West Ham. The West Ham defender Reece Oxford has rejoined Borussia Mönchengladbach on loan for the final 14 fixtures of the Bundesliga season.

Two days after Sam Allardyce said Ademola Lookman would not be leaving Everton on loan, the 20-year-old has joined RB Leipzig until the end of the season. Coming in the other way is Eliaquim Mangala, who has joined from Manchester City on the same basis. Muhamed Besic departed on the same basis for Middlesbrough.

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Newcastle have agreed a loan deal for the Leicester striker Islam Slimani. However, Slimani faces at least two weeks out after picking up a thigh injury in training. Henri Saivet has left Newcastle to join the Turkish side Sivasspor on loan for the rest of the season and Rolando Aarons has gone to Hellas Verona.

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Watford have taken the Sunderland midfielder Didier Ndong on loan until the summer and sent Costel Pantilimon on loan to Nottingham Forest with the Sweden Under-21 goalkeeper Pontus Dahlberg signing from Gothenburg. The 19-year-old Dahlberg has returned to IFK for the rest of the season. Watford’s Isaac Success has moved to Málaga on loan.

Manchester United completed the signing of the teenage goalkeeper Matej Kovar from FC Slovacko, subject to the Czech Republic Under-18s goalkeeper receiving international clearance. The teenager impressed on a one-week trial in November and has signed a professional deal at Old Trafford ahead of linking up with the under-18s.

Leicester City have bought the 17-year-old winger Callum Wright from Blackburn and allowed the midfielder Andy King to join Swansea City on loan. Liverpool sent four players on loan: Ovie Ejaria to Sunderland, Jon Flanagan to Bolton, Lazar Markovic to Anderlecht and Harry Wilson to Hull.

The Arsenal defender Mathieu Debuchy has joined French side Saint -Etienne until the end of the season after leaving Arsenal. The 32-year-old returns to the club where he started his career, making his debut as an 18-year-old in 2004.

Elsewhere in the Premier League there were loan deals for Chelsea’s Todd Kane, who joined Oxford and Manchester City’s Jacob Davenport, who has gone to Burton Albion.In the Championship Leeds signed the forward Tyler Roberts from West Brom for £2.5m and the leaders, Wolves, took Benik Afobe from Bournemouth on loan.