Pedro required extensive treatment and was unable to continue following a collision with Ospina in the first-half of Chelsea’s pre-season clash with Arsenal.
The Spanish winger was chasing a through ball at the Bird’s Nest Stadium in Shanghai when Ospina rushed from his goal to punch the ball clear.
The Colombian goalkeeper caught Pedro on his follow-through, clattering the diminutive winger and causing him to be substituted.
Chelsea fans have been quick to rage on Twitter, calling for retribution against the Gunners goalkeeper.
Scroll through the gallery above to see some of the best reactions after David Ospina accidentally punches Pedro.
