Crystal Palace are battling with Aston Villa to sign the Brentford striker Ollie Watkins and have offered a contract to Ryan Fraser, who is a free agent after leaving Bournemouth.

Watkins could be allowed to leave Brentford after their defeat by Fulham in the Championship play-off final on Tuesday but the club would demand more than £20m. The 24-year-old striker ended the season with 26 goals in 50 games and is regarded as one of the best talents in the Championship.

Palace, who have had a bid for Eberechi Eze rejected by Queens Park Rangers, are hoping to add more firepower to their attack.