The men starred together in tennis drama Borg Vs McEnroe, which is out today.
The biopic stars LaBeouf as tennis giant John McEnroe, with Sverrir Gudnason as Bjorn Borg and Skarsgard as his coach.
Skarsgard called his former Nymphomanic co-star a “beautiful” talent, adding to The Guardian that he was not a great fit for the part just because he shares a media “bad boy” reputation with McEnroe.
“I totally understand the choice, but I think it’s right not because of Shia’s personality, but because of his skills,” he reasoned.
“I mean he has had problems when he gets drunk, probably he can’t handle it or whatever.

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“And that has to do with his childhood and the things that he hasn’t solved in his life.”
He added: “It shouldn’t cast any shadow over him as an artist.
“There are some artists that are assholes but are straight all the time and I despise them.”
Borg Vs McEnroe has had reasonably good reviews; accumulating a 70% score with Rotten Tomatoes.
One of Skarsgard’s children is of course Bill Skarsgard, currently playing Pennywise in It.
That movie will likely give Borg Vs McEnroe some strong competition at the box office this weekend.