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Ben Margot/Associated Press

The injury bug arguably hit Arizona harder than it hit any other team in the National League last year.

A.J. Pollock and Paul Goldschmidt both missed significant time with fractured hands. Mark Trumbo was sidelined for most of the season with a stress fracture in his foot. It's tough to produce many runs without your top three offensive players for most of the season.

Ace pitcher Patrick Corbin also missed the entire season after he underwent Tommy John surgery. With Corbin gone, Josh Collmenter led the team in wins with 11. That was not what D-Backs fans expected.

However, this season, with the exception of Corbin, the majority of the big-time contributors are healthy again. Goldschmidt, Pollock and Trumbo are all expected to be ready for the 2015 season. Pollock and Trumbo especially have impressed this spring. Trumbo is hitting .385 with two home runs and 11 RBI, while Pollock is hitting .365 with nine RBI and three stolen bases.

And Arizona fans know that it should be only a matter of time before Goldschmidt starts smashing the ball again.

With the offense completely healthy, the pitching staff will also welcome back Daniel Hudson and David Hernandez (projected to return in May). Therefore, there is reason to be optimistic that the team will enter 2015 healthier than it was in 2014.