"Kayla has just won the US Open in juniors and she's just very promising, so I knew I had to be concentrated today", Muguruza said.
Maria Sharapova withdrew from the Rogers Cup with a sore left arm on Thursday, putting the five-time grand slam champion's US Open participation in doubt. She beat Jennifer Brady in three sets.
"I had a bit of a letdown but that's the way it is", Sharapova said.
Colombia 'will not recognise' Venezuela's assembly vote
Its oil exports to the US totaled $10.2 billion in the year ending in May, according to Panjiva, a global trade research firm. Thousands of Venezuelans loaded with heavy bags have crossed the border into Colombia this week, fleeing the unrest.
The injury will cast further doubt over Sharapova's participation at the US Open, the last Grand Slam event of the season which starts in NY on August 28.
Sharapova suffered the injury while playing in her first U.S. match in more than two years, defeating American Jennifer Brady 6-1, 4-6, 6-0 in her Monday opener at Stanford. After yesterday's scan, the doctor has recommended I don't risk further injury. This was the first WTA tournament she had played in the United States since 2015.
Early in the third, Sharapova fought off two break points to consolidate her lead, and wrapped up the match after two hours and two minutes.
Once again, Sharapova saw her odds sinking after having played only a match at Bank of the West Classic in Stanford, CA.
She had been scheduled to play Wednesday night, so seventh-seeded Lesia Tsurenko moves on to the quarterfinals.
Aug 02 2017 LG V30 : launch August 31, 2017
This upcoming smartphone can well be considered as a worthy competitor to Samsung's upcoming flagship Galaxy Note 8 . However, a source familiar with the matter has stated that the LG V30 will also be released in the # United States .
Aug 02 2017 Mindanao mayor killed in drug raid
Police said none of their officers was hurt apart from one who sustained a minor injury from an explosion. Police say they seized firearms, ammunition, drugs and drug paraphernalia from this residence.
Jul 29 2017 Protesters call for ending Jordan peace treaty with Israel
The ministry said the incident began when two Jordanian workmen arrived at the residential building to replace furniture. The Israeli Embassy has refused to release the guard to the Jordanians for questioning, saying he has immunity.
Jul 26 2017 Switzerland chainsaw attack suspect still on the lam
The suspect is described as 186m tall with brown short hair - contrary to a previous police statement that he was bald. The company doesn't know yet whether the other three wounded people were customers or passers-by, she added.