Paul Cook was left to rue Pompey’s failure to grab a second goal as they slipped to a crucial defeat to Plymouth.
The Blues’ automatic promotion hopes are in tatters having conceded twice in the final six minutes to slip to a 2-1 Fratton Park defeat.
Michael Smith had given the hosts a deserved lead and they continued to dominate over Derek Adams’ side in an entertaining fixture.
Yet on 84 minutes, Jamille Matt headed home Graham Carey’s right-wing corner.
Then substitute Gregg Wylde slammed home the winner only two minutes later as the Pilgrims took home the points.
And Cook was disappointed his side were never able to increase their lead during earlier dominance.
He said: ‘It was very, very disappointing for us that at 1-0 up we haven’t got the second goal, it’s such an important goal as we have seen all season.
‘We’ve got in great situations, with great chances and haven’t got the second goal - and you are always liable then for that to happen.
‘Unfortunately it has happened to us.
‘You have got to give Plymouth credit for staying with it, getting the goals and leaving the stadium like they have been promoted. That is what winning football does for you.
‘We have succumbed to that little bit of pressure and have got to go away, look at it and battle well on Tuesday night against York.’