Liverpool manager Jurgen Klopp has claimed that he will need to keep his emotions under wraps in the dugout at Upton Park on Tuesday night after undergoing surgery at the weekend.
The German coach was absent from Anfield on Saturday for Liverpool's 2-2 draw against Sunderland in order to have his appendix removed.
Klopp is well enough to travel with his team for Tuesday's FA Cup fourth-round replay in London, but he has insisted that he needs to keep calm on the sidelines.
"I think I am experienced enough to know that for me it won't be a normal coaching game, so I don't want to jump or things like this," Klopp told reporters.
"I have a few holes in my body - hopefully the water stays in [the water bottle]! I can't win the game with my emotions outside, I know this, so I can handle it, no worries."
Klopp also spoke of Saturday's match, in which Liverpool let a 2-0 lead slip before conceding twice in the last eight minutes of the match.
"I watched the game afterwards - I watched it yesterday," Klopp added. "I spoke to all of my coaches and what I heard before was what I saw afterwards - that it was not necessary to give the points away.
"In this moment it's easy for me to say we have to carry on and take the positive things out of this game because there were a lot of positive things. If you take out the last 10 minutes, then it was a real good game and how you should play.
"We could have scored a few more goals and how we conceded the goals was not too good, how it always is, but it is not the only information I need to understand what our situation is at the moment."
The Merseyside outfit are currently ninth in the Premier League table.
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