This is a major swap in terms of both quality and quantity. Martinez is an excellent right-handed batter who mashes left-handed pitching. He can play the corner outfield positions as well as first base, so look for him to play as many as four positions (along with the DH role) in Tampa Bay this season. Arozarena is a decent outfield prospect as well and may compete for a roster spot in spring training. Lastly, the Rays also improved their draft pick situation in the Competitive Balance Round of the MLB Draft.

While Martinez is coming off a decent '19 campaign (.269 BA, 10 HR, 42 RBI), this trade looks like a steal for the Cardinals. In Liberatore, St. Louis adds one of the premier left-handed pitching prospects in all of baseball (he was ranked No. 3 among Rays prospects by Baseball America). In addition to Liberatore, the Cards also add a catching prospect in the 19-year-old Rodriguez from Venezuela. In the Competitive Balance Round of the '20 draft, St. Louis moves down from No. 38 overall to No. 66 overall.

Martinez can certainly hit but is he an everyday player? Probably not, especially now that he has gone to Tampa Bay (a team notorious for platooning players). Therefore, he should not be overrated on draft day. As for Liberatore, he should be drafted in all keeper leagues this year (if he is not an actual keeper in some league formats). His ceiling is very high. Arozarena and Rodriguez also have fantasy upside but neither should be drafted in 2020. Both should be on the fantasy radar for future keeper league analysis.