 In June 2011 he left for Maltese Premier League club Valletta.He scored 2 goals in 4 appearances in 2011–12 UEFA Champions League qualifying rounds, losing to FK Ekranas.He signed a contract extension to the local champions Valletta FC, And William ending winning best midfielder, best foreigner, Best overall and was named in the BOV premier league Best XI.Da Silva played two seasons for Luxol, winning the title in 2015.