Timo Werner has been mocked over the Stamford Bridge PA system today.

Chelsea treated a small number of fans to an open training session ahead of their trip across London to play Arsenal in the Premier League on Sunday.

New £98million signing Romelu Lukaku was in attendance while Cesar Azpilicueta and Co paraded their Champions League and European Super Cup trophies on the pitch before getting down to business.

But things turned sour in the stands when some of the fans in attendance were given the chance to offer up a score prediction for Sunday's match at the Emirates across the PA system at Stamford Bridge, reports the Daily Mail.

In a video posted on Twitter, the host of the event can be heard asking one fan who you can struggle to make out near the front of the stand.

The fan replied: 'Let's have it right.... get Werner out of the club'.

The withering comment produced a stunned reaction from those other Chelsea fans sat near him in the stand.

One supporter was particularly irate and shouted: 'No, you get out' to the fan before asking 'who are you? who do you think you are?'

Reports suggest the criticism continued towards the fan before he was chased out of Stamford Bridge.