Show No. 13 is a Friday Two-Tout Extra-Full Edition featuring an interview (2:50) with Dr. Peter Chalmers, professor of orthopaedic surgery at the University of Utah, an expert on baseball-related injuries to the elbow and shoulder, and a practicing surgeon ... Dr. Chalmers and PD discuss Tommy John surgery, the UCL, its connection to pitching mechanics, and what he'd do to greatly reduce the incidence of the injury ... Then, our second interview (1:09:05)features Dave Potts, from RotoGrinders ... Dave tells PD about the value of a stud pitcher in DFS lineups, about assessing early underformers like George Kirby and overperformers like Tanner Houck, and about using DFS research in managing full-season leagues, and he has some Boons and Banes for this weekend's FAAB run... ... In the Market Watch player news report, PD pinch-hits for Ray Murphy, discussing hitter and pitcher news from the AL (47:55) and the NL (59:00) ... In the Minor League Minute (2:10:35), BHQ scouting team member Rob Gordon looks at TEX RHP Jack Leiter, BAL SS Jackson Holliday, PIT RHP Paul Skenes, TAM SS Carson Williams, COL OF Zac Veen, and MIN OF Emanual Rodriguez ... In the Frequent Flyer (2:14:00), BaseballHQ analyst Alex Beckey looks at NYM SP Christian Scott .... Runs 2:21:00