Japan's Kei Nishikori has said that he got tired during the semi-final loss to second seed Andy Murray at the Rogers Cup on Saturday.
Murray comfortably beat the third seed 6-3, 6-0 in just over an hour in Montreal.
Prior to the match, Nishikori had been in scintillating form beating Spain's Rafael Nadal 6-4, 6-4 in the quarter-finals.
In Saturday's match though the Japanese star did not look anywhere near that level and was simply blown away by the Scot.
"I think I'm more tired," Nishikori said after the loss.
"Everything was sore these couple of days. Today it got a little bit worse so I couldn't really move 100 percent.
"Especially after the first set, I was feeling it more and more.
"At the beginning of the first set I was OK, but after that I wasn't the same player," he added.
Murray will now face world No. 1 Novak Djokovic in Sunday's final after the Serb reached to the final with a 6-4, 6-4 win over France's Jeremy Chardy.