As Hearts test looms is O'Neill right to be 'delighted' by Benfica defeat?

Celtic have lost four of their last five matches in all competitions; Martin ONeills side return to action against last seasons Premiership runners up Hearts in their first Parkhead meeting since their final-day decider; watch Celtic vs Hearts live on Sky Sports from 2.30pm on Sunday

Martin O'Neill wants Celtic to take the positives from a 4-1 defeat to Benfica when they host Hearts on Sunday - live on Sky Sports.

However, is the 74-year-old right to be "really, really delighted" with the Hoops' second-half performance in Lisbon?

The result leaves Celtic with no points from six after two league-phase fixtures in the Europa League and means they have now lost four of their last five matches across all competitions.

Another defeat - fairly or unfairly - also raises more questions over O'Neill's future in the Parkhead hot seat.

It was just weeks ago, following consecutive defeats to Rangers and a loss in their opening Europa League fixture, that O'Neill said he was going to consider his position after a gruelling week. He stayed, and now he must deliver.

Here we answer some key questions as the veteran boss chases another huge result on Sunday...

Source: Sky Sports