The Pilgrims boss said: "The lads have worked fantastically hard over the last few weeks - and this break has come at a good time for them."
Striker Fallon hit the winner 19 minutes from time to deny ten-man Doncaster a point. The visitors had Martin Woods sent off five minutes after the break for a second yellow card. Alan Judge gave Argyle a 26th-minute lead before Dean Shiels levelled three minutes later.
But Fallon had the final say after Neil Sullivan could only parry Jamie Mackie's shot.
Doncaster boss Sean O'Driscoll said: "Even with ten, we thought we could get something from the game."
This article has 0 comments