Wimbledon 2006
A rain break early in the match unsettled Ancic and when they returned the 2004 semi-finalist went 0-40 down and lost serve when Federer struck a forehand pass to lead 3-2.
After security officials dealt with the two protesters Ancic had a glimmer of hope trailing 4-3 when a double-fault gave him a break point.
The Croatian netted a forehand, though, and Federer recovered to hold and serve out the first set.