Fraces Tiafoe certainly did not pose the same challenge to Roger Federer as he did recently at the US Open.
There, the 19-year-old American pushed the Swiss great to five sets at Arthur Ashe Stadium.
Yet this time around in Basel, Federer completed a tidy 6-1 6-3 win in just 61 minutes to set up a second-round showdown with Benoit Paire.
“Today I felt good from the beginning, I had a good first set,” said Federer, who raced to a 4-0 lead in 16 minutes.
“There was a re-set in the second set, I needed to find another break somehow.
“I felt good throughout. The short match didn’t matter too much because I have a day off tomorrow. Even if it had been three sets, it would have been OK. As long as I’m winning, it’s all good.
“I’m just happy to win the first match. Francis was tough in the US Open and Miami. The next round with Paire will be tough, he is a dangerous player indoors. I’m happy I’ve found my rhythm early in Basel.”
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Also advancing on Tuesday was second seed Marin Cilic, No.3 seed David Goffin and fifth seed Jack Sock.
Eighth seed Mischa Zverev was the most notable casualty, falling 7-5 7-5 to Leonardo Mayer.
Crowd favourite Dominic Thiem advanced to the second round of the Erste Bank Open 500 after seeing off the dangerous Andrey Rublev.
The second-seeded Austrian hadn’t won a match in more than a month, but nonetheless saw off the US Open quarterfinalist 6-4 6-3.
Thiem next takes on Richard Gasquet, who on Monday beat Feliciano Lopez.
The only other seed to join Thiem in the last 16 was Pablo Carreno Busta; the fourth seed ousted qualifier Guido Pella in straight sets.
Two other seeds – No.6 Sam Querrey and No.7 Kevin Anderson – exited the tournament. Querrey blew four match points in losing to Albert Ramos-Vinolas, while Anderson was a 6-4 6-4 victim of qualifier Guillermo Garcia-Lopez.
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