Sunderland boss Martin O'Neill has big concerns over his striker options.

Frazier Campbell and Connor Wickham both failed to inspire any confidence during defeat to Hartlepool United last week.

O'Neill lamented: "We know where the problems are. You just need to look at our scoring record last season.

"This puts pressure on other players to score goals, either from set-pieces or from the midfielders.

"Eventually centre-forwards have to weigh-in with them and, at the moment, you would want to know who is going to score 15 goals in a Premier League season - and when that will happen."