Triple-A Norfolk right-hander Suk-min Yoon, who is 3-7 with a 5.76 ERA in 15 starts, has been placed on the disabled list with a shoulder impingement. Duquette said Yoon will miss at least one start and be re-evaluated in about a week. … Duquette said catchers Caleb Joseph and Nick Hundley "have met the challenge so far" in replacing the injured Matt Wieters, and so Duquette does not anticipate trading for another catcher at this time. … Right-hander Edgmer Escalona refused his outright assignment to Norfolk and has become a free agent. … Outfielder Francisco Peguero, who had been on an injury rehab assignment for Norfolk, was taken off the Orioles' 40-man roster and outrighted to the Tides. … Left-hander Randy Wolf, who was signed to a minor league deal Sunday, will join the Tides on Tuesday at Pawtucket … Right-hander Bud Norris (right groin tightness) is still expected to start the second game of Friday's doubleheader, but Showalter said he could be pushed back for several more days if he needs extra time off. … Bowie right-hander Zach Davies was named Eastern League Pitcher of the Week for going 2-0 with 13 scoreless innings. … The Orioles are encouraging fans who use the light rail to and from Camden Yards to allow extra time over the next three weeks because of emergency repairs that have closed several stops. For more information go to mta.maryland.gov or call 410-539-5000 or 410-539-3497.