Bristol Rovers manager Graham Coughlan accused Portsmouth striker James Vaughan of punching captain Tom Lockyer during his side's 1-1 draw at Fratton Park.
Jonson Clarke-Harris scored one penalty and missed another as Bristol Rovers held promotion-chasing Portsmouth to a 1-1 draw at Fratton Park.
Portsmouth manager Kenny Jackett was predictably frustrated after seeing his side surrender a three-goal lead to draw 3-3 at Southend.
Simon Cox's hat-trick enabled Southend to hit back from 3-0 down to draw 3-3 with Sky Bet League One promotion chasers Portsmouth at Roots Hall.
Southend will be without defender John White for the Sky Bet League One clash with Portsmouth.
Plymouth will be without Joel Grant as they look for their fifth win in sixth matches when they host Portsmouth at Home Park on Saturday.
QPR boss Steve McClaren looks set to again be without three experienced players for Tuesday's FA Cup fourth-round replay against Portsmouth.
Kenny Jackett saluted Fratton Park new-boy Omar Bogle after he scored his second goal in as many games to rescue a point for stuttering Portsmouth.
Omar Bogle scored on his Fratton Park debut to rescue Portsmouth a 1-1 draw against Doncaster and spare Kenny Jackett's side from a fourth straight defeat.
Portsmouth could hand debuts to James Vaughan and Lloyd Isgrove for the Sky Bet League One game against Doncaster.
Portsmouth have signed winger Lloyd Isgrove on loan until the end of the season from fellow Sky Bet League One side Barnsley.
Hatters interim boss Mick Harford hailed his side's outstanding character as they enjoyed a stunning 3-2 win over second-placed Portsmouth.
George Moncur's stunning late free-kick saw Luton win their top-of-the-table clash with Portsmouth 3-2.