West Ham have made an offer for Alaves defender Guillermo Maripan.

The Daily Mail says the 6ft 4ins Chilean centre-back has a buy out clause of £21million but West Ham are offering around £9.5m for the 26-year-old.

The Hammers are hopeful of concluding a deal, though are aware interest still exists from Serie A giants Roma.

The Italians have held talks in recent weeks with Alaves and are understood to have moved into pole position for the signing.

Maripan has 13 international caps and is a ball-playing centre back who has been likened in style to Barcelona's Gerard Pique.