Rovers had the better of a goalless first half but a brace by Dons substitute Nathan Young-Coombes appeared to have condemned Gary McSheffrey’s men to their first league defeat of the season.
However, Tommy Rowe’s powerful shot halved the deficit in the 86th minute before Williams made it 2-2 right at the death – sparking wild celebrations among the Rovers players, staff and travelling fans.
Here’s how we rated the Rovers players...
9. Tommy Rowe 7
Fairly quiet game by his standards and missed a very good chance at 0-0 but he's always liable to produce a moment of quality and it was a great strike to halve the deficit. Photo: HOWARD ROE
10. Lee Tomlin 7
Struck the post with a freekick and used the ball intelligently, particularly in the first half. Faded after the break. Photo: HOWARD ROE
11. George Miller 6
Worked selflessly up front on his own, as has become the norm. Starved of clear cut chances. Photo: Andrew Roe/AHPIX LTD
12. Josh Andrews 6
Made himself a nuisance and almost won it for Rovers with a shot that went just wide at the death. Photo: Howard Roe/AHPIX LTD