Gabriel Martinelli scored his first hat-trick for Arsenal as the Premier League leaders beat second-tier strugglers Portsmouth 4-1 to reach the FA Cup fourth round on Sunday, Reuters reported. 

The Brazilian was criticised in midweek for his behaviour after Liverpool's Conor Bradley suffered a serious injury near the end of their Premier League clash on Thursday but ended the week in style with his first goals in the FA Cup.

Manchester United bowed out though as they lost 2-1 at home to Brighton and Hove Albion with Danny Welbeck on target against his former club, according to Reuters.