Tuchel conceded he endured a disagreement with Alonso during their fixture with Wolves, but said their altercation "started and ended in the first half".
There have been widespread reports that the two men have fallen out, after full back Alonso was taken off at half-time at Stamford Bridge for tactical reasons.
His manager denied that was the case, and said any bad blood was now "solved".
Asked if the situation resolved, Tuchel said: "Yeah, for sure. Absolutely yes.
"It started and ended in the first half. It was not continued at half-time, nothing else.
"It was not continued at half-time and things are solved. That happens."