Millwall have terminated the contract of midfielder Will Hendry by mutual consent.
Lions boss Nigel Spackman has decided to let the 19-year-old move on after bringing in 16 new faces this summer.
Despite being contracted at The Den until next summer, the League One club could not guarantee Hendry regular first-team football this term.
With the summer transfer deadline looming on Thursday, Millwall have allowed Hendry to become a free agent and find pastures new.
That means he can sign on with any club outside the transfer window, as Hendry is now an unattached player.
Spackman, meanwhile, has taken four new players on trial in South East London this week.
Former Wycombe Wanderers defender Danny Senda, Northern Ireland Under-19 international Tommy Stewart, Polish striker Chimezie Chioma and former Plymouth Argyle forward Chris Zebroski have all been handed run-outs by The Lions.
Senda failed to impress Championship sides Leeds United and Wolves during similar trials this summer, while Zebroski comes to The Den after being axed by Plymouth for gross misconduct following an incident on the club's pre-season tour of Austria.
In other news Millwall have allowed young defender Adam Cottrell to join Cambridge on loan.