25 aces by Raonic! What a serving effort - a whole set of aces. But Raonic couldn't muster one single break point on the Fed serve and it told in the end. Fed just had enough to get through - helped by Raonic being awful on Fed's second serves, only winning 17% compared to Fed winning 47% on Raonic second serves. But when Raonic got a first serve in, most weren't coming back.
Fed has Berdych left to deal with at Halle, but hopefully he can see him off.
Raonic looks like he could be a very dangerous draw at Wimbledon in the first week and a half if he keeps serving like that. He definitely has at least one big upset in him.