Celtic left back Emilio Izaguirre has emerged as a target for MLS club San Jose Earthquakes.

San Jose coach Dominic Kinnear was in the directors' box at Parkhead for Wednesday's Champions League defeat to Barcelona.

And Sportsmail understands the Glasgow-born Celtic fan mixed business with pleasure to track Izaguirre, albeit the Honduran international enduring a mixed night as he conceded the penalty which sealed Barca's 2-0 victory.

Emilio Izaguirre is a transfer target for MLS outfit San Jose Earthquakes

Izaguirre was watched by Earthquakes coach Dominic Kinnear in the game against Barcelona

Out of contract in the summer after six years at the club, Izaguirre has been granted a first-team reprieve following a two-month injury lay-off for Kieran Tierney.

Agents for the experienced full-back are in talks over an extended deal, with manager Brendan Rodgers recently expressing a wish to tie the 30-year-old down to a new contract.

The Celtic boss commented recently: 'We have one with experience and one with youthfulness. So it is a perfect balance.'

Izaguirre, who was previously linked with with a move to Toronto FC, said last week that he was keen to stay.

The Honduras international is out of contract in the summer but is keen to stay at Celtic

'The issue of a new contract is not down to me – my agent is negotiating with Celtic, but the club have always treated me well,' he declared.

As Sportsmail first revealed, Celtic have been looking at Portland Timbers midfielder Darlington Nagbe, who was another prominent MLS figure in the Parkhead stand for the Barcelona game.

He was offered a tour of the stadium as a guest of Celtic before attending the game, with Celtic currently weighing up whether to move for the £2million-rated United States international.

However, in a guarded statement to American paper The Oregonian, a Portland Timbers spokesman said: 'We expect Nagbe to be with the Timbers in 2017.'