Rovers are unlikely to delve into the market, but have the option of signing free agents outside the window should they require any additional depth or cover.
But which players are available as free agents? We take a look at some of the exciting options that Darren Moore could yet pursue should he wish to seek new recruits:
1. TOM CARROLL
Big things were once expected of the former Tottenham Hotspur midfielder, but he now finds his career at a crucial juncture after being released by Swansea City. A move to League One to rebuild his career could prove attractive. Photo: Getty Images
2. BREK SHEA
Injury has hampered the development of the former USA international but, fresh from a spell with Atlanta United, Shea is ready to work his way back into the game. Photo: Alex Menendez
3. ROSS McCORMACK
McCormack remains a free agent. His wage demands could well prove a stumbling block for any League One side aiming to sign him, though. Photo: Ashley Feder
4. JAKE WRIGHT
Wright, an experienced centre back, was released by Sheffield United on Deadline Day. Oxford fans were calling for Karl Robinson to bring him back to the Kassam Stadium, and a third tier move could well be on the cards. Photo: Nathan Stirk