The 12-time champion also improved his record at Roland Garros to 95-2 with this win.
Nadal powered to sweep 11 straight games from a 1-1 tie in the first set, which ended when the 19-time Grand Slam champion forced McDonald to come to the net with a dropshot and then fired a forehand cross-court winner.
World champion Yan Zibei took the crown in the men's 100m breaststroke in 59.07 seconds, with Wang Lizhuo from Heilongjiang and Yu Zongda from Hubei rounding out the top three.
Second seed Nadal will face Italy's Stefano Travaglia in the round of 32. The latter survived a five-set thriller against Japan's Nishikori Kei to advance 6-4, 2-6, 7-6 (7), 4-6, 6-2.
"We expect a very tough match because Pakhtakor are physically strong but we are ready," said Golmohammadi.
It is the first time for national ice hockey matches to be held in Qinghai on the Qinghai-Tibet Plateau, and is also a breakthrough in holding high-profile ice hockey events in high-altitude regions of the world.
Elsewhere, Guangzhou Evergrande sealed the 1-0 win by an own goal from Dalian Pro defender Shan Pengfei.
"He is taking his medical test and he still has to sign his contract," commented Koeman, who said that although he would "rather not talk" until the youngster had put pen to paper, "we are going to have a young full back. He will have to compete with other defenders, but he is young and has played in the Champions League and I am certain he will be very useful."
Thanks to effective COVID-19 control measures, more and more companies began to regain their energy in the second half of 2020.
Fabio Cannavaro's side is scheduled to play against Chongqing Dangdai Lifan or Hebei China Fortune. Enditem
Given the restrictions arising due to the COVID-19 pandemic, the London Marathon event will be in an enclosed looped course in St James' Park, but an unbowed Kipchoge said he did not adjust his training program to meet the challenge of running in a loop course.