Bryant, Donaldson headline Home Run Derby participants

The eight participants in the 2015 Home Run Derby, who will compete in a new single-elimination tournament, were unveiled Thursday.

For the first time ever, participants will face a time limit rather than a set number of outs, and will compete head-to-head in a knockout bracket.

Each participant will have five minutes to hit more home runs than his opponent, though bonus time (a maximum of a minute-and-a-half) can be earned by hitting particularly lengthy home runs. The player with more home runs at the end of each round will advance, with tiebreakers to be determined by a 90-second swing-off or, failing that, successive three-swing swing-offs until a winner is crowned. Each batter is also entitled to a 45-second timeout per round.

The event will take place Monday at Great American Ball Park in Cincinnati.