New signings Ben Close, Ro-Shaun Williams, Kyle Knoyle and the returning Tommy Rowe were present alongside those remaining from last season as the group were put through their paces in preparation for the new campaign.
And Wellens stuck to his word that footballs would be used from the start at Cantley Park.
Here, we take a look at some of the shots from the first day of pre-season.
13. Passing drill
Fresh from extending his Rovers stay, Lirak Hasani gets on the ball at Cantley Park Photo: Howard Roe/AHPIX LTD
14. Picture Howard Roe/AHPIX LTD, Football, Sky Bet League One, Doncaster Rovers Cantley Park Traning Centre, Doncaster, UK, 28/06/2021, Rovers first day back in training
Charlie Seaman will be pushing for first team football this season Photo: Howard Roe/AHPIX LTD
16. Good to be back
Tommy Rowe is back at Cantley Park two years on from his Rovers departure Photo: Howard Roe/AHPIX LTD
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