Mistakes happen. Just if they happen too often.
Upson giving away the penalty at home to Hull.
Upson passing to MacArthur at home to Wigan.
Bridcutt giving the ball away against West Ham.
Chris Wood missing a penalty against Southampton.
Macca miss in the last minute with 9 men against Burnley.
Barnes heading a Vicente corner against the post against Swindon.
Dunk getting sent off at Palace.
I am sure there are more. First ones I could think of.
Own goals against Liverpool etc.
Upson giving away the penalty at home to Hull.
Upson passing to MacArthur at home to Wigan.
Bridcutt giving the ball away against West Ham.
Chris Wood missing a penalty against Southampton.
Macca miss in the last minute with 9 men against Burnley.
Barnes heading a Vicente corner against the post against Swindon.
Dunk getting sent off at Palace.
I am sure there are more. First ones I could think of.
Own goals against Liverpool etc.