Chelsea boss Carlo Ancelotti was surprised to see Manchester United dumped out of the FA Cup by Leeds.
Ancelotti oversaw Chelsea's comfortable 5-0 thrashing of Watford yesterday.
"It (Manchester United's defeat) was a surprise but this means that in every game if you don't stay focused, every game can be difficult," he said.
"We stayed focused at the start of the match and afterwards it was easy to win this game. If we had not stayed focused, it would have been easy to lose."