The Arizona Diamondbacks have been without their electric, flamethrowing closer since he exited a June 9 game against the Seattle Mariners with an elbow injury in the 2025 season . One Tommy John surgery later, Martinez is slowly working his way back to full health. It's going to be an extremely lengthy journey, but the young right-hander is well on his way, for now. On Saturday, Diamondbacks manager Torey Lovullo told reporters present at Chase Field (including AZCentral's Nick Piecoro ) that Martinez had thrown his very first bullpen session since undergoing his elbow procedure. That will be the first of many such bullpens, of course, but it's a positive step nonetheless. Likely more appealing to fans will be the knowledge that Martinez was already lighting up the radar gun. His fastball sat in the upper-90s, and even climbed as high as 99 MPH. For a first bullpen session, that is a very encouraging sign.…