My friend Adam, a huge tennis fan, alerted me to this trailer: 

For a second I thought it was Alexandar Skarsgaard as Borg, but it is his father Stellan playing Lennard Bergelin, Borg's coach. Borg, a shocking likeness, is played by Sverrir Gudnason, who's been around a while. (He's nearly 40.) Also Swedish, thank God. The movie is a joint Swedish/Danish/Finnish production, directed by a Dane, Janus Metz Pedersen. The trailer highlights the Borg-McEnroe rivalry but it'll be interesting to see if the film does, since the film is simply called “Borg.” For now.

It opens in Sweden in September. Resistance is futile.

ADDENDUM: Yeah, “Borg vs. McEnroe.”