Bradley Cooper's mother doesn't approve of Irina Shayk.

The 'American Sniper' star recently started seeing the Russian model after splitting from British actress Suki Waterhouse in March after two years of dating, but Gloria Campano thinks he has moved on too quickly.

A source told US OK! magazine: ''She doesn't think the relationship has legs. Bradley hates to upset her, so he might break it off!''

The Oscar nominee, 40, was spotted kissing Suki at Californian festival Coachella shortly after their split and a source claimed at the time that his mother had urged him to give the model another chance.

The insider said: ''Bradley had thought he was ready to settle down but when the subject of marriage and children came up with Suki, he freaked out and broke things off.

''But he's missed her and after talking about it at length with his mum, Bradley had a change of heart.

''She gave him some really good advice and it made him realise he wanted Suki in his life.

''She encouraged him to pick up the phone. Luckily, Suki was willing to meet up and talk.''