Doncaster are now sixth - the final play-off slot - two points ahead of Posh and both teams have seven games to go. Doncaster also boast a much better goal difference.
McCann’s men could pull five points clear of Posh on Saturday (March 30) as they host struggling Walsall, while Posh have no fixture. Blackpool (home to Plymouth) and Coventry (away to Barnsley) could also overtake Posh at the weekend.
Posh return to action at home to Gillingham on Saturday, April 6.
Unsurprisingly there were no Posh players selected in the League One team-of-the-year, the team chosen by fellow professionals.
Peterborough United talking points: 'The diminishing value of Ronnie Edwards, a manager more impressed by hard work and performance than reputation and Bali Mumba's behaviour'
Peterborough United boss Grant McCann angered by 'disrespectful' Bali Mumba after Plymouth Argyle loss
Peterborough United linked with Ben Garrity as Port Vale boss seeks to play down link
Posh chairman Darragh MacAnthony: 'Put the hard yards in or we'll get beaten'
Peterborough United should make a couple of changes to their starting line-up for the visit of Sheffield Wednesday
Current top two Luton and Barnsley supply three players each. Barnsley boss Daniel Stendel was nominated to manage the side.
The team selected was: Adam Davies (Barnsley), Jack Stacey (Luton), James Justin (Luton), Matt Clarke (Portsmouth), Ethan Pinnock (Barnsley), Alex Mowatt (Barnsley), Herbie Kane (Doncaster), Cameron McGeehan (Barnsley), Aiden McGready (Sunderland), James Collins (Luton), John Marquis (Doncaster).
Manager: Daniel Stendel (Barnsley).