DEAN Saunders will step up his attempts to land defensive reinforcements after seeing out of contract duo Adam Lockwood and Oscar Radford seal moves elsewhere.
Lockwood completed a switch to Bury on Wednesday morning following his release from Rovers after a six-year spell in South Yorkshire.
The 30-year-old, who played a key role in Rovers’ promotion to the Championship in 2008, has agreed a two-year deal at Gigg Lane.
He will make an early return to Doncaster when Bury visit the Keepmoat Stadium on August 21 - Rovers’ first home game of the new League One season.
Oscar Radford, meanwhile, has sealed a switch to Southern League side Kettering Town.
The young defender had been invited back to pre-season training with Rovers, which starts on Friday.
But with no contract offer on the table Radford jumped at the chance to join Town.
Shelton Martis, George Friend and James O’Connor are the only recognised central defenders left on Doncaster’s books - and Saunders will look to add two additional recruits in that position before the season starts.
Habib Beye is still contracted to Rovers but it would be a major surprise if the Frenchman does not move to a club at a higher level.