West Ham had plenty to celebrate at the weekend after they secured back-to-back Premier League wins with a 3-1 win against Middlesbrough.
But centre back James Collins was still bouncing – quite literally – on Monday off the back of victory at the Riverside.
The Wales international, who has three children, was in high spirits at a birthday party attended by his own kids, so much so that he decided to join in the fun at the trampoline centre. Not that his manager may have approved all that much.
![West Ham centre back James Collins launches himself into a backflip off of a trampoline](http://i.dailymail.co.uk/i/pix/2017/01/23/12/3C6B617C00000578-0-image-a-22_1485175484692.jpg)
![Collins flies into his backwards somersault](http://i.dailymail.co.uk/i/pix/2017/01/23/12/3C6B61C400000578-0-image-m-21_1485175466838.jpg)
![The Wales international has to concentrate hard as he attempts to keep his form in the air](http://i.dailymail.co.uk/i/pix/2017/01/23/12/3C6B622600000578-0-image-m-23_1485175551644.jpg)
![The 33-year-old lands on the matt](http://i.dailymail.co.uk/i/pix/2017/01/23/12/3C6B627B00000578-0-image-m-25_1485175617269.jpg)
![The 33-year-old sticks the landing](http://i.dailymail.co.uk/i/pix/2017/01/23/12/3C6B602000000578-0-image-m-26_1485175630130.jpg)
![Collins celebrates in front of an impressed group of kids](http://i.dailymail.co.uk/i/pix/2017/01/23/12/3C6B600D00000578-0-image-m-28_1485175647302.jpg)
![](http://i.dailymail.co.uk/i/pix/2017/01/23/11/3C6B7A2400000578-0-image-a-25_1485170058025.jpg)
Slaven Bilic lost Angelo Ogbonna for the rest of the season following victory over Middlesbrough after confirming that the Italy defender needed surgery to correct a knee problem.