Supporters only have until Sunday night to download our brand-new Powershot Challenge game and be in with the chance of winning a shirt signed by the Liverpool squad.

Powershot Challenge, the new game for iPhone, iPad and Android, is available to download now and over the coming months will give fans the opportunity to play for some special prizes.

If you join up and start playing before 9pm BST on Sunday, you could enter our challenge to win a signed Warrior jersey.

Fans can play as Martin Skrtel, Steven Gerrard, Glen Johnson, Lucas Leiva and Philippe Coutinho in this fast-paced arcade football game, which you can buy now by clicking here.

Simply swipe the screen to help your player progress and hit targets - register an account and submit your score and you could be in the running to scoop some fantastic prizes.

As the season progresses plenty more prizes will be dished out to players, so why wait? Sign up for Powershot Challenge now by clicking here.