The Orioles may demote right-hander Frank Mata on Tuesday to clear room for the activation of outfielder Felix Pie.
Mata was called up from Triple-A Norfolk in late May after rattling off a 1.86 ERA, a 1.14 WHIP and eight saves in 14 2/3 innings as the Tides’ closer. That success has not transferred to the big leagues, where the 26-year-old owns a 9.22 ERA, a 7/7 K/BB ratio and a 1.98 WHIP in 13 2/3 frames.