Chelsea's Oscar taken to hospital after blow

Arsenal's Colombian goalkeeper David Ospina (R) collides with Chelsea's Brazilian midfielder Oscar during the English Premier League football match between Arsenal and Chelsea at the Emirates Stadium in London on April 26, 2015. AFP PHOTO

Chelsea midfielder Oscar was taken to hospital for scans after hurting himself in a collision with Arsenal goalkeeper David Ospina during Sunday's 0-0 draw, manager Jose Mourinho revealed.

Ospina clattered into Oscar after the Brazil playmaker had lobbed a shot over him mid-way through the first half at the Emirates Stadium, leaving the Chelsea player flat on his back.

After receiving treatment he returned to the fray, but was taken off at half-time, with Didier Drogba going on.

"He went to the hospital at half-time. So we are waiting," Mourinho told his post-game press conference.

Asked if he thought Oscar had suffered a concussion, Mourinho replied: "I don't know. We are waiting."

The result left Chelsea needing six points from their remaining five games to claim a first Premier League title since 2010.