Exeter City stunned Doncaster to reach the FA Cup third round. Steve Flack opened the scoring midway through the first half when he headed Alex Jeannin's free-kick over the stranded Andy Warrington.
Dean Moxey doubled the lead in stunning style when he caught Warrington napping and lobbed the ball home from 45 yards.
Blundell, who struck the bar early on, pulled one back from Paul Green's cross in the 86th minute, while Guy Ipoua also hit the woodwork for Rovers.
Exeter: Rice, Hiley, Sawyer, Gaia, Jeannin, Afful (Sheldon 74), Ampadu (Moxey 15), Clay, Taylor, Devine, Flack (Edwards 83). Subs Not Used: Buckler, O'Sullivan.
Booked: Devine.
Goals: Flack 25, Moxey 49.
Doncaster: Warrington, Price (Ipoua 66), Fenton, Morley, Ryan, McSporran (Coppinger 63), Ravenhill (Rigoglioso 71), Green, McIndoe, Blundell, Roberts. Subs Not Used: Jones, Beech.
Booked: Ryan.
Goals: Blundell 86.
Att: 4,797
Ref: A Penn (W Midlands).