Cian O'Sullivan hopeful that Dublin have put underperformances behind them ahead of Leinster opener against Wexford

Cian O'Sullivan admits that Dublin didn't reach the performance levels they would have wanted to during the Allianz League but he says he's hopeful that the team have learned from some of their underwhelming defeats.

The Sky Blues suffered losses against Tipperary, Limerick and Galway and while they wouldn't have been favourites for any of those games, the nature of the losses was the big take away for small ball followers in the capital.

Tipp came to Parnell Park and won comfortably at a venue that they've sometimes struggled at in the last 15 years, while the Dubs failed to lay a glove on the All-Ireland champions.

Perhaps the defeat against the Tribesmen at Salthill was the most frustrating as the Micheál Donoghue's team played themselves into contention, only to be outscored by 0-10 to 0-01 in the last 20 minutes.

This Sunday Dublin open their Leinster SHC campaign away to Wexford in a game seen by many as potentially season-defining for both counties.

If there is to be a loser, they'll face an uphill task to make the top three in the provincial table and progress to the All-Ireland series, with clashes against Galway and Kilkenny to come for both.

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"When you're on a pitch to be honest the game can sometimes move by you," O'Sullivan said this week at a StayCity aparthotel event.

"It's not until ten or 15 minutes after at you realise that, 'ok we left that behind us there' or 'that should have been done differently, and that was a real chance.'

"We probably could have capitalised