"It is super hard to play the pitch. Very slippery and bouncy. We had a couple of chances to go 1-0 ahead but they trouble you and pressure you," Tuchel said after the game. "You need to make a goal for belief. Sometimes it is like this. I don't want to be too harsh.
"As long as we have chances and touches in the box and don't concede too many chances the results will be there. We need to accept this."
Both goalkeepers were kept busy as the two sides sought a goal but Tuchel will be disappointed that his side didn't capitalise on their dominance in possession.
"He has been without playing for a long time and it is natural that it cost him a little bit in adapting to the rhythm," Bielsa said after the game.
"I value a lot the effort he put in when he was on the field because it is an effort that is above what he is actually capable of at this moment in time."