Montreal, Aug. 6 -- Clara Tauson reached the last four of the Canadian Open by beating Grand Slam champion Madison Keys 6-1 6-4 today to reach just the second WTA 1000 semi of her career.

Danish player Tauson, seeded 16th in Montreal, secured another major scalp after beating second seed Iga Swiatek in the previous round.

Upon defeating sixth seed Keys, the 22-year-old revealed she had done so while dealing with personal tragedy.

"Two days ago, my grandfather unfortunately passed away - so I really wanted to win for him today," Tauson said after the match.

"I was told the day after I beat Swiatek, so yesterday, and I really wanted to come out here and show my best tennis for him.

"Hopefully he's watching."

Tauson, ranked 19th in the w...