Chelsea are into the Champions League quarterfinals thanks to the win and later paid tribute to goalscorer Azpilicueta and Tuchel.
"Both of them are very important pieces of this team," said Alonso. "We are showing that we are together and a very good group of men.
"The manager and the captain and clearly very important parts of the team and we follow them. We focus on getting the results on the pitch, with them leading us, and hopefully things can get back to normal soon.
"We need to focus on the football. That is what we can control, so we will just continue to work hard and be together with all the staff – both at the stadium and the training ground – everyone needs to be together as one.
"We will concentrate on the football and try and win as many games as we can and then hopefully things off the pitch can be sorted out soon."
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