Alas, although the acting's uniformly strong, and the film has kitchen-sink grit to spare, it errs more on the side of 1985's Rocky IV than John Avildsen's '76 original, what with its "unstoppable" Russian fighter (Kurt Angle) and a climax that's never in doubt.
When, late in the story, both brothers must defeat an inexpressive and nearly superhuman Russian fighter (pro wrestler Kurt Angle), it's impossible not to think of Dolph Lundgren as the Soviet near-automaton from the affectionately mocked "Rocky IV."
But because we know exactly which two characters will end up in the championship bout (despite the challenge of a hulking Russian straight out of Rocky IV), the home stretch occasionally becomes tedious, with the emphasis shifting from character development to repetitive slugfests.
In “Rocky IV” the same year, Stallone— draped in the flag—gets to pummel a Soviet Superman, giving America some sweet wish fulfillment during the Reagan Cold War.
But there is way, way too much of the TV commentators, who give us the same information ad nauseam (the bouts are almost comically over-explained), and none of the other fighters are given anything beyond a rudimentary sense of personality (O'Connor and co-writers Anthony Tambakis and Cliff Dorman even trot out a Rocky IV-style Russian killing machine, and the characterization is about as subtly drawn).