Walls spent the 2020 campaign training at the Rays' alternate site following three minor-league seasons during which he established himself as a steady fielder and patient hitter with plus speed. The 24-year-old isn't likely to hit for much power, but he brings a professional approach to the plate that has thus far resulted in a 12.1 BB% and 18.3 K% in the minors. From a fantasy perspective, Walls' best attribute is probably his above-average speed that he converted into 59 stolen bases in 86 attempts between 2018 and 2019. Tampa Bay protected him from the Rule 5 draft in November, an indication that they see him contributing at the major-league level, perhaps as soon as next season. Once he arrives, Walls could fill a super-utility role, but he may not offer enough in terms of offensive production to excite as a fantasy asset. Read Past Outlooks