The number of the radar gun has been a major focus of DL Hall’s season. The Orioles’ top pitching prospect didn’t have a normal offseason, unable to lift weights or run because of a back injury that also stunted his spring training. When he returned to the mound and built up as a starter in Triple-A Norfolk, the 2017 first-round pick was throwing about 2 to 4 mph slower than normal. He’s back in Baltimore now, recalled Saturday for the injured Félix Bautista, and the high 90s numbers on the radar gun Saturday night in the Orioles’ 5-4 win over the Colorado Rockies were no fluke. “Nah, I think that’s about where I’m at right now,” Hall said Sunday morning in his first time talking with media since rejoining the team.