Patrick Bamford
Patrick Bamford struggled to make an impression for Palace and is now back in West LondonGetty Images

Patrick Bamford has left Crystal Palace and returned to parent club Chelsea. The Stamford Bridge outfit also confirmed Christian Atsu has come back to West London after his loan spell at Bournemouth was cancelled, while midfielder John Swift has extended his loan stay at Brentford until the end of the season.

Bamford, 22 failed to start a single Premier League game at Selhurst Park and revealed after the goalless draw with Swansea on Monday 28 December that he had already played his final game for Alan Pardew's side.

"Things haven't worked out for whatever reason. I would have been more content if I had been given a chance and not taken it, but I haven't started a game in the Premier League," Bamford told the Croydon Advertiser. "For a young player like me, that's not what you need so I had to take my development into consideration and make it the priority."

Chelsea confirmed in a short statement on Monday 4 January the England Under-21 international has returned, along with Ghana international Atsu.

Swift, 20, joined Brentford in October on an initial one-month deal, convincing the club to extend that until January while also earning his first appearance for the England Under-21 side. The Championship mid-tablers have since extended his stay at Griffin Park, with head coach Dean Smith eager to see the player develop at his side.

"John has developed a lot as a player in his time with Brentford," Smith told Brentford's official website. "He is someone I knew about when he was playing in League One last year and he has improved since then. He also has lots of scope to develop further. It is great to have him as part of the squad for the rest of the season."

Swift has featured in 15 league games for Brentford this season, starting 13 and contributing three goals and three assists.

Chelsea also confirmed 24-year-old Mexican forward Ulises Davila has left will join Santos Laguna in a permanent deal. Davila signed for Chelsea in 2011 but has been unable to play for the club due to work permit issues.