The Black Cats manager has seen Asamoah Gyan sold permanently whilst Nicklas Bendtner's loan spell has finished, leaving him with just three recognised strikers at his disposal
Sunderland boss Martin O'Neill says that he is focused on improving his side’s attacking threat ahead of the new Premier League campaign, with more experienced striking options his top priority this transfer window.
The Black Cats had great success utilising Stephane Sessegnon behind Nicklas Bendtner in a 4-4-1-1 formation following O'Neill's arrival midway through last season, but the Dane has since returned to parent club Arsenal following the completion of his loan deal.
Additionally, Asamoah Gyan has made his loan deal at Al-Ain permanent, leaving O'Neill with just Fraizer Campbell, Ji Dong-Won and the inexperienced Connor Wickham as the only recognised strikers in his squad, with the trio having only scored five goals between them last season.
Speaking to the Sunderland Echo, O'Neill said: "Undoubtedly, what is focusing my mind more than anything else is the need to strengthen our attacking options.
"We have lost Nicklas Bendtner after his loan, we have lost Asamoah Gyan from our squad list and we need to bring in strikers.
"What I am looking to do is bring in attacking players who have quality and who have more experience than we have now, because, when you look at our squad in terms of attackers, we are short on experience and it's something we need to try to address."
The Wearsiders have been linked with a number of strikers, chief amongst them being Steven Fletcher of relegated Wolves, and O'Neill is looking to address his striker shortage soon.
However, Carlos Cuellar is the sole new arrivals at the Mackems so far this summer - the Spanish defender arriving on a free transfer after the expiration of his contract at Aston Villa - yet O'Neill is optimistic of concluding a second transfer in the coming days, but would not reveal the identity of any potential new recruits.