‘United seem to want to sign any player available in that position which is just madness.
‘For me, they signed Jadon Sancho for a position they didn’t need and they’ve got [Cristiano] Ronaldo, [Mason] Greenwood and [Edinson] Cavani. They clearly can’t play all these players and keep them all happy.
‘For Timo Werner to thrive then he has to be playing somewhere where he plays every week and at Manchester United he’s not going to do that.’
Werner scored twice against Zenit St Petersburg on Wednesday night but the hosts scored a last minute equaliser to secure a point and deny Chelsea top spot from Group H.
Speaking after Chelsea’s 3-3 draw, Blues boss Tuchel said: ‘We had a very good first 15 minutes and then we stopped doing the things we did in the first 15 minutes.
‘We were forgetting why we were the better team. Our behaviour changed when we had the lead and this is something we never did and we should never do.
‘We do the things that we want to do on the highest level and we push ourselves and it hurts and it has to hurt.
‘You have to play through pain – physical pain – and you have to raise your level of concentration and you have to overcome adversity.
‘If you change your behaviour because of the score, you allow the possibility to get punished. It’s as easy as the basics. The basics need to be pushed onto a higher level while we are in the lead.’