Twins' top prospect Walker Jenkins is dominating for Triple-A St. Paul after slow start with SaintsOutfielder Walker Jenkins, who ranks as MLB's No. 14 prospect per MLB Pipeline, struggled upon his promotion to Triple-A St. Paul on Aug. 25, collecting just one hit and four walks in his first 25 plate appearances with the Saints. In 235 plate appearances for the Wind Surge this season, Jenkins slashed .309/.426/.487 with seven home runs and 24 RBIs. When will Twins' top prospect Walker Jenkins make his MLB debut? It obviously would've been more ideal for Jenkins to start his Triple-A career hotter, but his recent stretch has made up for his slow start.