Ben Stiller shocks with bulging biceps at NBA Finals as muscles inspire fan to ask for his exercise routine

Ben Stiller is really, really, ridiculously muscular. 

The San Antonio Spurs were taking on the New York Knicks in a headline-making game on Wednesday, but Stiller, 60, served as a serious courtside distraction when he showed off his arms in all their defined glory. 

Fist clenched and arm raised into the air, there was no missing Stiller’s bulging bicep as he rooted on his beloved team from the sidelines.  

The definition was also visible when the Zoolander star was in a more relaxed state, with his muscles protruding even as he sat down.  

Fans couldn’t help but take notice – with one even asking for his exercise routine. 

‘Hey @BenStiller, maybe send us your arm workout? Let’s go Knicks!!’ one tweeted. 

Ben Stiller shocked fans when his buff biceps made an appearance at the NBA Finals on Wednesday

Ben Stiller shocked fans when his buff biceps made an appearance at the NBA Finals on Wednesday 

‘Okay Buff Stiller!!!!!’ one remarked. 

‘Ben Stiller clearly chose arm day over Severance S3,’ another wrote.  

‘Ben Stiller never lost that tropic thunder mass,’ another posted. 

‘Stiller is ripped,’ one poster commented. 

‘Tony Perkis in the house,’ another posted, referencing his role in Heavyweights. 

‘Dude Ben Stiller always been jacked,’ another wrote.  

‘Ben that arm real or AI?’ another asked. 

‘Ben got the guns. Good googly moogly,’ one posted. 

Stiller was one of several celebrities making the trip to San Antonio, with Timothee Chalamet, Tracy Morgan, and Spike Lee also in attendance. 

Stiller's bicep was displayed in all it's muscular glory as he rooted on his team from the courtside

Stiller’s bicep was displayed in all it’s muscular glory as he rooted on his team from the courtside

The photo of his sculpted arms inspired one fan to inquire about his workout routine

The photo of his sculpted arms inspired one fan to inquire about his workout routine

Even when in a more relaxed state, the protruding muscle was visible

Even when in a more relaxed state, the protruding muscle was visible 

'Tony Perkis in the house,' one commented, referencing his role in Heavyweights

‘Tony Perkis in the house,’ one commented, referencing his role in Heavyweights 

Stiller is famed for his role as a 'really really ridiculously good looking' air-headed model in Zoolander

Stiller is famed for his role as a ‘really really ridiculously good looking’ air-headed model in Zoolander

Fans couldn't help but notice Stiller's arms

Fans couldn’t help but notice Stiller’s arms 

Stiller was among the more recognizable fans of the New York Knicks who ventured south to San Antonio to watch their team return to the NBA finals for the first time in 27 years and reign victorious with a final score of 105-96.

The Knicks headed to Texas to take on the San Antonio Spurs in a rematch of the 1999 Finals, which, incidentally, was the last time New York reached this stage.

Meanwhile, back in New York, throngs of Knicks fans took to the streets near Madison Square Garden as revelers spilled out of watch parties both inside and outside the arena.

The Knicks are hoping to win their first NBA title since 1973, while the Spurs are hoping to come away with their sixth championship and first since 2014.