Argyle have had an excellent Christmas, taking seven points from three games, but Adams could hand starts to the likes of Antoni Sarcevic, Joel Grant and Jake Jervis, while Nathan Blissett could be available after injury.
Plymouth at last have some goalkeeping stability after signing Remi Matthews on loan from Norwich until the end of the season.
Kyle Letheren is the closest to full fitness of their three injured keepers but is still a few weeks away from a return.
Amadou Bakayoko is available again for Walsall after completing a three-match suspension following his red card against Northampton.
Goalkeeper Liam Roberts could return to the starting line-up after being among the substitutes for the loss to Rotherham following a hamstring injury.
Defender James Wilson is also pushing for a start after missing two games following the birth of his child but Tyler Roberts (hamstring) and Florent Cuvelier (knee) remain sidelined.
Manager Jon Whitney is hopeful both will be available for the clash with Oxford on January 13.
Rangers manager Steven Gerrard is weighing up a move for Liverpool full-back Jon Flanagan, reports claim.
Scottish champions Celtic are reportedly ready to offer full-back Calvin Miller a new deal before sending him out on loan.
Everton target Jack Wilshere has sparked a scramble for his signature after confirming he is leaving Arsenal this summer.
Tottenham's hopes of landing Wilfried Zaha have been hit by the news Crystal Palace have offered him a bumper new deal to stay.
Ryan Giggs says Gareth Bale would be the perfect fit for Manchester United but has doubts over whether he will leave Real Madrid.
Manchester City's attempts to sign Riyad Mahrez could be in doubt again as reports claim Leicester only want a straight cash deal.