The second half of the game would be defined by offensive runs from both teams and tough, physical play.
The second half of the game could be defined by offensive runs from both teams and tough, physical play.
The second half of the game should be defined by offensive runs from both teams and tough, physical play.
The second half of the game can be defined by offensive runs from both teams and tough, physical play.

Which one would you choose if you could and what tense will it be?