Celtic sign defensive duo Lee O'Connor and Jeremie Frimpong
Celtic have signed Dutch full-back Jeremie Frimpong from Manchester City, and defender Lee O'Connor from Manchester United.
Both players join on four-year deals with the Scottish champions.
Neither Frimpong, 19, nor O'Connor, 18, have made a first-team appearance for the Manchester clubs.
"It feels amazing to have joined Celtic," Frimpong told Celtic's website.
"I started going on YouTube to watch Celtic, and when they were on TV, I watched the games. Now I can't wait to play at Celtic Park in front of the fans.
"The manager phoned me today and told me that he believes in me and he thinks that what I can do will be good for the team."
O'Connor, a Republic of Ireland under-21 international, can play across the back four and also in midfield.
"I just want to get started, work hard and give it my all, and hopefully the manager and all the staff will see why they've brought me here and I can make an impact," he said.
Man City academy players depart
Frimpong's move to Celtic is one of a number of departures from Manchester City's academy on Tuesday.
- Aleix Garcia, 22-year-old Spanish midfielder, joined Belgian top flight side Royal Mouscron on loan for the season
- Claudio Gomes, 19-year-old French midfielder, joined Dutch top flight side PSV Eindhoven on loan for the season
- Lorenzo Gonzalez, 19-year-old Swiss forward, joined Spanish second tier side Malaga on a permanent deal
- Joel Latibeaudiere, 19-year-old English centre-back, joined Dutch top flight side FC Twente on loan for the season
Find all the latest football transfers on our dedicated page.