Two stunning strikes from Ben Close, one in either half, helped topple the Gills from the summit of the fourth-tier table and give Rovers their third win in as many matches.
Several players caught the eye as Doncaster produced another strong team performance to get win.
Here’s our ratings.
5. Tom Nixon - 7
Always positive in possession and solid at the back. Photo: Howard Roe/ahpix.com
6. Luke Molyneux - 7
Looked a threat for Gillingham's defence in the first half and showed quick-thinking for the winning goal. Photo: Howard Roe/ahpix.com
7. Harrison Biggins - 6
Caused Gillingham trouble with his pressing out of possession but faded after the break. Was beaten in the air for Gillingham's goal. Photo: Howard Roe/ahpix.com
8. Zain Westbrooke - 7
Assisted the opening goal from an indirect free-kick. Another all-round good display from a consistently good performer this term. A real technically gifted player. Photo: Howard Roe/AHPIX LTD