Alex Stewart, Oxford City's 12-goal striker, switched to Southern League Division 1 South & West rivals Burnham because of the abuse he was receiving on the club's messageboard.
City secretary John Shepperd said: "He was getting sick of the stick he was receiving."
Meanwhile, City aim to reach the last four of the Oxfordshire Senior Cup when they host Worcester & Bletchingdon on Tuesday night.
Richard Peirson returns for Didcot Town against Cirencester Town in the quarter-finals of the Errea Cup.
The former Abingdon United centre back was left out of Saturday's team at Oxford City.
"It was a bit hard on Richard to be left out," said Didcot manager Stuart Peace. "It was horses for courses."
Banbury United welcome back Lewis Travers from suspension when they entertain Hillingdon Borough.
TUESDAY'S SQUADS Didcot Tn (v Cirencester Tn, home): from Watkins, Heapy, Jack, Williams, Parrott, Witt, Mulvany, King, Odhiambo, Vine, Hope, Hopkins, Peirson, Thomas, Bicknell.
Banbury Utd (v Hillingdon B, home): from Wheeler, Feely, Travers, Kinch, Essex, Baird, Fuller, Stuart Bridges, Blossom, Sc Bridges, Gordon, Stanbridge, Gooderick, Murphy, Bryan, Sambrook, McKay.
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