Manchester United fans have criticized Marcus Rashford for his lack of defensive effort after the club's 4-3 defeat against Chelsea.

After scoring a career-best 30 goals in all competitions last season the 26-year-old has struggled to replicate such form this term and was dropped for the visit to Stamford Bridge.

The England international's lackluster performances on the pitch have been further marred by incidents away from football, including a now-infamous 12-hour bender in Belfast back in January that saw him miss a training session before an FA Cup match.

In response to growing discontent from the club's fanbase, the England international hit back at those questioning his commitment to United in an editorial last month.

However, despite assurances that he is giving his all for his boyhood club, some United fans on social media are not convinced after circulating a clip from the defeat at Chelsea on Thursday.

A further fan branded Rashford 'lazy' for his tracking, while another agreed: 'Is it just me but Marcus Rashford is so lazy. The last 2 games I’ve seen he’s played in both times he just wastes so many chances.'

A further fan questioned why one of Rashford's teammates had not questioned him on his defensive responsibilities: 'Why is Bruno or other senior players not pulling him up on this? Roy Keane would explode if he saw a teammate putting in so little effort.'