Raonic says goodbye after stunning exit

ROME, ITALY - MAY 11: Milos Raonic of Canada in action against Nick Kyrigois of Australia during day four of the The Internazionali BNL d'Italia 2016 on May 11, 2016 in Rome, Italy. (Photo by Matthew Lewis/Getty Images)

Wimbledon runner-up and fifth seed Milos Raonic was a big casualty at the US Open, ousted by American Ryan Harrison in the second round.

Raonic came to Flushing Meadows with high hopes, instead the Canadian star suffered a shock 6-7 (4-7) 7-5 7-5 6-1 defeat after three hours, 37 minutes on Wednesday.

Buoyed by his semi-final run at the Western and Southern Open, Raonic looked good early in warm New York conditions as he claimed the opening set in a tie-break.

Raonic seemed to slowly tire from that point in New York, the 25-year-old thwarted by Harrison, who saved nine of 10 break points in a 70-minute second set.

The third was a difficult one with Raonic calling a medical timeout for his wrist during another marathon set, which saw his service percentage drop to 38.

It got worse for the deflated-looking Raonic in the fourth, which proved to be his final set, as Harrison served out the match to love.

culled: Pulse Sports Agency International By Omni Sport