It's not everyday that a sportsman as successful and famous as Roger Federer gets starstruck, but that was the case when the Swiss star was paid a visit by former basketball star Michael Jordan.
The 32-year-old is bidding to lift his 18th Grand Slam title at this year's US Open and he made light work of Marinko Matosevic in their first round clash.
Round one victories aren't unusual for the former world no.1 but this win had added sentiment, thanks to the appearance of Jordan.
Jordan was a member of Federer's court-side entourage at Flushing Meadows and the sporting heroes had the chance to greet each other properly after the win, having spent the previous evening having dinner with one another.
“It's just amazing having Michael here,” Federer said after the match. “Growing up, he was my big sporting idol. Having him here is unbelievably special.”
The duo took the opportunity to compare notes as well. In association with sporting giants Nike, Federer and Jordan have recently designed a new trainer in the mould of the classic 'Air Jordans'; made famous by the 51-year-old in his heyday.
The new footwear clearly aided the 17-time major champion in his brisk straight-sets 6-3 6-4 7-6 demolition of controversial player Matosevic, who caused a stir in the summer when criticising Andy Murray's appointment of female coach Amelie Mauresmo.
Despite his appearance at Flushing Meadows, Jordan - the former Chicago Bulls player and star of the 'Space Jam' film - revealed that he doesn't usually follow tennis but was impressed by the way in which Federer moved so gracefully around the court. Who isn't?! - nevertheless that's a resounding compliment for the trainers.
Federer will hope for more of the same as he looks to end a wait of over two years for a major title. The event in New York is one which he hasn't been able to conquer since he did it five times in a row between 2004 and 2008.
US Open bid
Matosevic's Australian compatriot, Samuel Groth, is next in line for the world no.3 at Flushing Meadows after the big-server defeated Albert Ramos in their first round tie; Groth's first ever win at a Grand Slam.
No doubt there'll be more big names which will turn up over the course of the next week-and-a-half to support Federer and the other big names.
Maria Sharapova was watched by famous actor Alec Baldwin in her own first round win yesterday, and the star of American comedy show '30 Rock' was even on-hand to catch a stray ball which flew in his direction.