Kevin Towers says the Arizona Diamondbacks will look to add a power bat this offseason.

"We're probably in need of a left-handed bat," he said. "We're a little more right-handed dominant other than [Adam] Eaton and [Gerardo] Parra."

Arizona is more likely to acquire one via trade rather than free agency.

"We're going to look at free agents, but I think this is one of the weaker free-agent markets I've seen in some time, so that might lead us toward looking at trade partners more," Towers said. "I think there's some clubs we might match up pretty well with, considering they've got depth in areas we have needs and we have depth in areas where they have needs."