Cheltenham have terminated the contract of Paul Black by mutual consent, with the defender set to move to the USA.
The 25-year-old left Mansfield to join the Robins on a one-year deal in June.
But he has been restricted to four starts and one substitute appearance for the League Two club and has not played since the arrival of Paul Buckle as manager in November.
Meanwhile, Buckle has said Matt Richards is still in his plans despite being dropped against Morecambe.
The 30-year-old midfielder has played 30 games this season but was left out of the squad for Friday's 1-1 draw.
"I had a long chat with Matt this week and I need him to have more fight in his game," said Buckle.
"I need him to win more second balls and to be able to press. That's the role of the modern-day midfielder.
"He realises that and he's taken it well. He's definitely got a future at the club, he just needs to be more dynamic."