'There have been arguments': Gisele Bundchen and Tom Brady's marriage hit by reports of strife after stress of 'deflategate'

It's been a difficult summer for Tom Brady, with his professional reputation suffering in the wake of deflategate.

And according to new reports the stresses of the scandal have had repercussions for the American football star's six-year marriage to model Gisele Bundchen. 

A source close to the sports star told People magazine: 'There have been a lot of stresses in their marriage in the last year, especially during football season.'

Scroll down for video 

'There have been arguments': Tom Brady, seen last week, left, and Gisele, seen last month, have suffered from 'stresses' in their marriage following deflategate

The source described how father-of-three, 38, can be 'nasty and cold' when engrossed in his own problems.

'Tom is singularly focused on his career and sometimes Gisele feels left out,' they said. 'There have been arguments.' 

It's undeniable that New England Patriot's star player Brady's summer has been far from relaxing, following his four-game suspension by the NFL in the wake of allegations that he tampered with a football. 

Stra player: Brady celebrates the New England Patriots victory in the Superbowl earlier this year; the star quarterback has been suspended for four games following deflategate but denies any wrongdoing

In a scandal dubbed deflategate, Brady was alleged to have conspired with two Patriots equipment employees to deflate footballs below what league rules allow, to give him a competitive edge in New England's victory over the Indianapolis Colts in January's AFC championship game. 

The quarterback strongly denies any wrongdoing. Arguments over the the suspension continue to rumble on in court, with a court allowing Brady to join his team for practise this past week. 

Meanwhile he and Gisele have spent less time together than usual, and did not celebrate their summer birthdays together.

Indeed at one point Gisele headed to Paris alone, where she was photographed wearing a burqua on a visit to a plastic surgery clinic. 

According to the New York Post, Gisele allegedly underwent an eye lift and procedures to restore her breasts that she thought were 'sagging' following her two pregnancies. 

Loving family: The couple are parents to Vivienne, two, and Benjamin, five, while Gisele is stepmother to Brady's son John from a previous relationship

However the 35-year-old regularly posts loving messages to her spouse on social media. Indeed on Brady's birthday earlier this month she posted a picture of the couple kissing, their two children on their shoulders.

 'Happy birthday my love!' wrote Gisele. 'We're so blessed to have you in our lives. Thank you for always giving us so much love. We love you! #love #family' 

The couple share two children, Benjamin, five, and Vivian, two, while Gisele is a loving stepmother to Brady's son John, eight, from his relationship with actress Bridget Moynahan.

The two began dating in December 2006 immediately after the football player split with actress Bridget, who later found she was pregnant. 

Gisele clearly enjoys being a mom and now has more time to spend with the children after retiring from the catwalk earlier this year.

A representative for Gisele did not immediately respond to a request for comment.