Batter up! Mark-Paul Gosselaar and co-star Kylie Bunbury pose completely NUDE in sexy new photos for baseball show Pitch

He worked out relentlessly to get into fighting shape for this exact moment, and Mark-Paul Gosselaar's efforts have clearly paid off.

The 42-year-old wore nothing but shin guards as he posed completely nude in a sexy new photo from his baseball show, Pitch.

But as it turns out, Mark wasn't the only one to model his physique for the show.  

Batter up! Mark-Paul Gosselaar wore nothing but shin guards as he posed completely nude in a sexy new photo from the show Pitch 

Mark and his cast mates portray fictional members of the San Diego Padres, who all take part in a nude photo shoot as a sign of support for teammate Ginny Baker (Kylie Bunbury) after a hacker leaks old naked images of her.

The photo shoot, which took place on Thursday's episode entitled San Francisco, exhibited off all the hard work the actors have put into honing their physique. 

What a bunch of sports: Mark and his cast mates portray fictional members of the San Diego Padres, who all take part in a nude photo shoot as a sign of support for teammate Ginny Baker (Kylie Bunbury) after a hacker leaks old naked images of her 

They're not shy! The stars sure weren't afraid to show some skin

Mark admitted he started working out specifically for this moment months ago. 

'We didn’t put in extra work the day before. We put in extra work months before,' he told Entertainment Weekly. 'Production gave us a heads-up that this was a storyline because they know how important it is for us to get into shape and to look the part. 

'Mo McRae and I have been on very strict diets since the beginning of the show because we were preparing for these scenes. 

Hey batter batter! There was no shortage of muscles on display as the team mates took part in their photo shoot in the episode entitled San Francisco

Ooh la la: Ginny (played by actress Kylie Bunbury) stripped off her robe 

By her side: Ali Larter plays Ginny's agent, Amelia Slater

'For me, I’ve had to gain some extra weight to look the part. We all sort of help each other with our diets and our workouts and keep each other honest during the process, because it’s hard to be on set all day and have craft service there and not get yourself in trouble. 

'The day before, you don’t drink water, and before the scenes, you work out to pump yourself up — all of which I’d honestly rather not do, but I was glad with the results. 

'I have so much respect for the people who do magazine spreads and model because it’s not easy.' 

Pitch currently airs every Thursday on Fox.  

Home run: Pitch currently airs every Thursday on Fox

'We put in extra work months before': Mark, pictured in Los Angeles in September, admitted to Entertainment Weekly that he started working out specifically for the nude photo shoot months ago 

 

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