Darius Henderson returned home to haunt Rovers as they fell to a 2-0 defeat against struggling Leyton Orient at the Keepmoat.
Jay Simpson put Orient ahead just three minutes in before Rossington-born Henderson struck against his home town club, just after the hour mark.
Rovers were left raging after being denied a penalty and almost certain sending off for Orient’s Scott Cuthbert just before the break.
But ultimately they failed to ease the pressure on themselves and boss Paul Dickov as they fell to a second successive defeat.
Rovers did create plenty of other chances during the first half to cancel out Simpson’s composed early goal.
James Coppinger saw a shot blocked well by Scott Cuthbert before a double chance in the 17th minute.
First, Tyson was sent clear by Wellens only to see his shot saved by Gary Woods. Coppinger then collected the rebound but his shot was cleared off the line.
Jobi McAnuff put the ball on a plate for his team mates to grab a second when he flashed the ball across the face of goal but there was no one on hand to turn it home.
Marc De Val tested former Rovers keeper Woods with a decent shot from a Coppinger lay off on 25 minutes.
Woods was again called upon to deny his former employers, keeping out a drive from Tyson who was played into space by Harry Forrester.
Then came the moment of controversy. Woods let a long ball bounce over his head with Tyson surging in to shoot. Cuthbert blocked, with most of a Rovers persuasion thinking he had done so with his arm.
Woods quickly redeemed himself after his near-howler, keeping out Tyson using his legs after Wellens again played the Rovers forward through.
After the break, Paul Dickov threw on Kyle Bennett in place of Harry Forrester, searching for an equaliser.
And Bennett threatened quickly, skipping past several challenges only to pull a shot wide from a good position on 57 minutes.
But then Henderson struck, receiving a corner on the edge of the box and smashing a left-footed effort into the far top corner to put one hand on the three points for Orient.
Curtis Main was sent on for Rovers and could have pulled them back into it but failed to react quickly enough to a corner which fell to him at the back post.
Rovers continued to push as the game wore on but the damage had been done.
Rovers: Steer, Wakefield, McCombe (Robinson 84), McCullough, Wabara, De Val (Main 64), Coppinger, Wellens, Furman, Forrester (Bennett 52), Tyson. Not used: Marosi, Evina, Lund, Keegan.
Leyton Orient: Woods, Omozusi, Cuthbert, McAnuff, Lowry, Pritchard, Bartley, Dagnall (Batt 87), Henderson, Price (Lee 80), Simpson. Not used: Kashket, Grainger, Ling, Agyemang, Adeboyejo.