Arsenal sub Theo Walcott exits Cup match minutes after coming on

Having just been subbed on for an injured Alex Oxlade-Chamberlain, Arsenal striker Theo Walcott was taken off moments later with an apparent calf injury in Tuesday's League Cup match with Sheffield Wednesday.

Walcott fell to the pitch in the 15th minute after coming on ten minutes sooner, and after receiving attention on the pitch from the team medic, walked off the pitch under his own volition.

The England international was subbed off for 17-year-old Ismael Bennacer, who joins Glen Kamara and Alex Iwobi as Gunners making their debut Tuesday at Hillsborough.