Manchester United goalkeeper David De Gea has hailed the form of their strikers going into tomorrow' derby.

De Gea was full of praise for Wayne Rooney and Robin van Persie.

"Not only did he score goals, he played some great football, worked hard, brought dynamism to the team and played a really great game," he told the club's official website.

"It's good for us that he and Robin score goals. It is important, they are key players and this year they will combine to great effect."