However, the Brazilian’s goal left Tuchel to question his own superstitions after avoiding watching the action at The Hawthorns.
The Reds won a corner in the last minute of the stoppage time and Alisson rose to watch the delivery from Trent Alexander-Arnold to the far corner of the net.
Hal Robson-Kanu had sacked the forward hosts after just 12 minutes before Mohamed Salah reached his side just after the half hour mark.
The victory moved Liverpool one point behind fourth-placed Chelsea and means the race for the top four heads into the final week of the season.
And Tuchel explained how he got home only to find the game 1-1 and avoid looking at him, only to find out soon after that Alisson had secured all three points for the Reds.
He said: “I came home in the afternoon and turned on the TV and saw 1-1. I was like “oh, that wouldn’t be a bad result”. I was a bit superstitious and didn’t follow him.
“I checked my phone in the 95th minute and it was still 1-1. I checked a minute later and realized superstitions don’t always work, or maybe I made the wrong decision if they work!
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“Like I said, that doesn’t make it boring. He was a fantastic head at the last minute. I saw it today and it makes it pretty interesting and tight. But still, it’s in our hands.
“Someone asked me after the final if it was a major setback before Tuesday, no, it was Arsenal’s game. It was our fault that it’s so close. We left the door open and Liverpool stepped in the door. that’s what they do.
“It’s a strong team and anyway we’ve had a huge effort to overcome them before. It was a huge gap, but we did what we could to get past them. We may be aware of this tremendous performance that we have made so far, but we want to finish the job.
“We have to refocus today and forget about all the other results and rely on ourselves because we are in a fortunate situation where we can rely on ourselves and not look at other motives. “
Tuchel was speaking ahead of his side’s Premier League game with Leicester City at Stamford Bridge on Tuesday.
Leicester are currently third in the table with 66 points, Chelsea are fourth with 64 points and Liverpool are fifth with 63 points.
But Tuchel insists his team will treat the clash like any other game and that there is no additional pressure on his players.
“Well that didn’t make things boring in the Premier League, that late goal from Alisson! But, at all costs… I don’t like it, because that’s not what we do, ”he told football.london.
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“We want to win games. It is not a matter of life and death, but it is also very important for our ambitions. Of course, the situation is very clear: it is still in our hands.
“So it’s very positive and what we have worked hard for. We approach the game more or less like any other game, the more tension there is on the more normal approach that we use.
“There’s a lot of talk about what’s going on, so we have to stay focused on what we can influence. We approach this game like any other game, with a clear victory and the desire to win. “