Caoimhín Kelleher will be a late arrival into the Republic of Ireland camp on Tuesday as the 26-year-old is undergoing a medical at Brentford.
Ireland face Senegal at the Aviva Stadium on Friday before an end of season friendly in Luxembourg on June 10th.
Mark Flekken, Brentford’s starting goalkeeper last season, also underwent a medical on Monday at Bayer Leverkusen before the Dutch international’s £8 million (€10 million) sale to the German club.
To replace Flekken, Brentford are expected to pay Liverpool an initial £12.5 million (€15 million) for Kelleher with performance related add-ons increasing the transfer fee to £18 million (€21 million).
Leeds United and West Ham United were also interested in signing Kelleher but the Cork man is expected to link up with Ireland captain Nathan Collins as Brentford manager Thomas Frank attempts to improve the club’s 10th place finish in the Premier League next season.
“I think everyone knows how good Caoimhín is and what he’s achieved over the last couple of years,” said Jake O’Brien after Ireland training in Abbotstown on Monday morning. “If it goes through, it’s a great move for him, to become a number one in the Premier League.
“I think everyone know how good he is and how high his ceiling is. He can push on and do great things.
“He’s definitely up there with the best goalkeepers in the Premier League and I think next year he’ll show that.
“To go and play every week is very important and he’s more than good enough. Brentford have done well this season so it’s a club he can progress and do a lot at.”
The other 22 players named by Ireland manager Heimir Hallgrímsson came through training ahead of facing Senegal.
If Kelleher is unable to start on Friday or next Tuesday in Luxembourg, Bristol City’s Max O’Leary is set, at 28, to win his first international cap.
Hallgrímsson has rested the majority of Irish players in the EFL Championship, like Burnley’s Josh Cullen and Middlesbrough’s Finn Azaz, as the June friendlies land in the middle of their off-season.
The World Cup qualification campaign begins against Hungary in Dublin on September 6th.
