Wycombe 0-1 AFC Wimbledon
Wycombe manager Gary Waddock was sacked after his side suffered their third successive defeat.
AFC Wimbledon collected their first win since the opening day as Sammy Moore struck just before half time.
The visitors were awarded a penalty after Danny Foster was judged to have handled Byron Harrison's strike but Elliot Parish saved his spot kick.
Wimbledon made amends though, as Moore unleashed a spectacular half-volley off the underside of the crossbar.