Revealed: Jake Gyllenhaal broke up with his girlfriend Alyssa Miller 'because he was in the gym everyday' for new movie Southpaw
Published: 03:17 BST, 2 December 2014 | Updated: 03:44 BST, 3 December 2014
He has recently been taking roles where he radially changes his physique.
But it seems like Jake Gyllenhaal's dedication to his craft may have cost him a relationship.
The 33-year-old star reportedly spent so much time at the gym to prepare for his role as a buff boxer in Southpaw, his relationship with Alyssa Miller could have been a casualty.
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He won't skip leg day: Jake Gyllenhaal and model Alyssa Miller reportedly split due to the time the actor spent training for an upcoming role, as they were pictured together in New York in September 2013
The film's director, Antoine Fuqua, revealed in an interview with Deadline, that the actor may have split with the 25-year-old model due to his constant training as he was dating her around the time of filming the movie.
Antoine told the online publication: 'Literally. I think he broke up with his girlfriend because he was just in the gym every day.
'He was training like a fighter. I had him sparring, really getting hit. I put him in situations where I wanted to see what he was made of. No one but fighters understand the sacrifice it takes to be a fighter.'
At the helm: Director Antoine Fuqua, pictured at the premiere of Equalizer in September, told Deadline: 'I think he broke up with his girlfriend because he was just in the gym every day.'
Buff brawler: A recently released picture of Jake in the film Southpaw showed that the hours in the gym definitely paid off as he looks absolutely ripped in his role as a boxer
Transformation: Before he took on the role as a fighter, he dropped 30 pounds for Nightcrawler
The director went on to describe the arduous working out Jake had to endure to prepare for the film and believes the role will ultimately change people's perceptions of him.
He said: 'Jake is going to change how people see him. I had him training twice a day in the boxing ring, he did two-a-days seven days a week.
'I pretty much had him with me and my trainer every day. I took him to almost every fight. I had him train at Floyd Mayweather’s gym in Vegas and we watched Floyd’s fights, and the Manny Pacquiao fight. He trained in New York at Church Gym with real fighters.
'We literally turned him into a beast… Jake, my god, he’s a very electric, powerful fighter in this movie, and a guy who fights for his daughter. I’m confident that this will change how people see Jake, as a leading man.'
It was quite a drastic change as Jake's most recently released film, Nightcrawler, had him dropping 30 pounds for the role.
Reports that Jake and the Sports Illustrated model split after six months of dating came in January. According to Us Weekly, they split sometime before the Holidays.
'He's back on the scene,' a source told the mag. 'They fizzled out. It happened a while ago.'
The womanising leading man previously romanced Jenny Lewis, Kirsten Dunst, Reese Witherspoon, Taylor Swift, and Minka Kelly.
Southpaw is currently in post-production and also stars Rachel McAdams, Rita Ora, Forest Whitaker, 50 Cent and Naomie Harris.
Its over!: Jake and Alyssa - pictured together while out and about in New York in August of 2013 - reportedly split after six months of dating last year
Dapper: Jake attended The Independent Film Project's 24th Annual Gotham Independent Film Awards at Cipriani Wall Street on Monday evening
Dynamic duo: The Prisoners star was joined by actress Ruth Wilson on the red carpet of the star studded event