​Sitting in position for a postseason spot, the Tampa Bay Rays will look to supplement their roster at the trade deadline. Of course, they’ll do some buying and selling, but at the major league level they will primarily be buyers. The moves they make will be determined by a few key things early this month.Fraley is a steady veteran who owns a career 110 wRC+ against right-handed pitching. While this isn’t an outlier level of production, it does represent a meaningful improvement over Victor Mesa Jr. (career 83 wRC+ vs RHP) and Chandler Simpson (career 94 wRC+ vs RHP). However, his lengthy injury history makes it difficult to count on that production over the final two months – especially when considering he was recently removed from his rehab assignment.AdvertisementAdvertisementAdvertisementShould Fraley give the Rays a reason to explore other left-handed outfield options, they would first look internally. Jacob Melton was a major acquisition this winter, but unfortunately he got hurt in late April and missed a large chunk of the season. He’s unproven at the major league level so there’s some risk. However, his near 70-grade power, plus speed, and plus defense at all three outfield spots gives him significant upside. Melton’s underlying data have taken a real step forwards this season so he may be ready for a role in the majors.If the Rays decide to take a conservative approach and keep Melton in AAA, there are plenty of affordable left-handed outfielders. I’ve already written about Lars Nootbaar, but here are a couple more names:MIN OF Matt Wallner (career 137 wRC+ vs RHP); recent struggles may have lowered the acquisiton costCOL OF Troy Johnston (career 137 wRC+ vs RHP); plus hitter but comes with defensive questionsMIN INF/OF Kody Clemens (career 96 wRC+ vs RHP); 117 wRC+ against righties in his last 500 PAsLux is feeling the best he has felt all year and is rehabbing in Durham. Similar to Fraley, Lux brings a steady veteran presence with him to a lineup. His 109 wRC+ vs righties for his career represents a real upgrade over what Palacios (92 wRC+ vs RHP) and Williamson (82 wRC+ vs RHP) are currently providing. I think Williamson’s best baseball is still ahead of him and moving him to short-side platoon work at 2B and back-up duties at SS could help him get into more optimal match-ups that improve his production.AdvertisementAdvertisementAdvertisementAs with Fraley, there’s a chance that Lux doesn’t get healthy or his production isn’t what the Rays need it to be. In that case, there aren’t really any internal candidates to come in and hold down bulk platoon work at 2B. Brayden Taylor could be that guy if he wasn’t still in AA. His performance this year has restored his prospect status following a swing adjustment late last season, but there’s a lot of risk in bringing him up to play most days without him having any AAA experience.It looks like the Rays would explore an external candidate if Lux is unable to regain h