Klein's agreement marks the Orioles' top Draft signing, though third overall pick Manny Machado is expected to sign closer to the Aug. 16 deadline. A right-handed pitcher out of UCLA, Klein went 6-1 with a 1.90 ERA and 10 saves, helping the Bruins reach the College World Series. When he passes his physical, he is expected to report to short-season Aberdeen.
According to Baseball America, the O's signed Narron and Bridwell -- both high school selections -- on Friday to overslot bonuses that combined exceed $1 million. Narron is a switch-hitting shortstop who committed to North Carolina, while Bridwell is a right-handed pitcher who was recruited to play quarterback at Texas Tech.
Machado is the only remaining unsigned pick from the Orioles' top five, with sixth-round pick Dixon Anderson and seventh-round pick Matt Bywatter also still in negotiations. While the general consensus is Machado -- a Scott Boras client -- will go right down to the midnight ET deadline before signing, Baltimore will spend the next few days working on the rest of its higher priority signings.