Sunderland sold Vito Mannone to Reading last summer, and that looks like a costly sale.
Goalkeeper errors have cost Sunderland 31 Championship points this season.
Simon Grayson's decision to sell Sunderland goalkeeper Vito Mannone looks like a huge mistake.
Reading beat Leeds 1-0 at the weekend.
Reading won against Leeds United at Elland Road in the Championship at the weekend.
Jason Steele was far from convincing again for Sunderland - but that can't be said of Vito Mannone, as he inspired Reading's win over Leeds United.
Reading will face Leeds United at Elland Road in the Championship this weekend.
Sunderland sold back-up goalkeeper Vito Mannone to Championship rivals Reading in the summer - and then failed to replace him adequately.
Sunderland need a new goalkeeper - and fans want West Ham's Darren Randolph.
The Leeds United goalkeeper could replace Vito Mannone at Sunderland.
Sunderland fans have been voting for the player that they would not mind seeing the back of this month.
Which Sunderland players would fans not mind seeing the back of this month?
Pickford has been Sunderland's goalkeeper in the absence of Vito Mannone, but now competition has increased a little with Vito Mannone returning from injury.