Thread:Fire mummy/@comment-26272757-20170702184700/@comment-26182781-20180128220434

He was good in the 4th set, but in the 5th set everything was different and Federer won 6-1. Federer asked for a time-out after the 4th set and that made him much better. Caroline Wozniacki (who won Australian Open WTA this year) also had a time out. Both players became much better of it. That shows how much it can help.