West Ham United co-chairman David Sullivan admits they'll be seeking a new striker signing this summer.

Sullivan knows that should Andy Carroll return to his parent club Liverpool, then he and boss Sam Allardyce must make the acquisition of a striker their priority.

"We want to bring in at least one proven goalscorer to bolster our attack," he told The Sun.

"We want to strengthen the squad and provide manager Sam Allardyce with greater options and variety."