Opportunity knocked for Gamel in 2017, and he responded with a surprisingly productive season. A 10th-round pick in 2010, he hit .318 from the time of his callup in late April until the end of July (83 games). Gamel faded in a major way down the stretch with a .198/.236/.335 line over the final two months, and those numbers are probably more indicative of who he is as a player rather than the ones he posted before the break. The 25-year-old turned in middling strikeout (22.2 percent) and walk (6.5 percent) rates, resulting in just a .315 wOBA, and the "expected" numbers from Statcast were ugly (.290 xwOBA, .244 xBA). Gamel was a net negative in the field, and given the fluky nature of his offensive numbers, another season of 500-plus plate appearances is no lock. He may be lucky to get to 400 even, as the Mariners could upgrade in left field at some point and relegate Gamel to a bench role.