As if the mounting losses weren’t enough, the injuries are now piling up for the last-place Orioles as left fielder Dwight Smith Jr. was placed on the seven-day concussion injured list Friday afternoon.

Smith injured his head and shoulder crashing into the left-field wall in Thursday’s loss at Texas. The roster move comes just a day after recently-promoted outfielder DJ Stewart was sent to the 10-day injured list with a sprained right ankle sustained in a collision with infielder Hanser Alberto in Wednesday’s defeat, the same night in which infielder Jonathan Villar and catcher Pedro Severino also left with minor injuries. Manager Brandon Hyde was so shorthanded for the final game of the Rangers series that Chris Davis made his first start in right field in three years — and made a key error in the 4-3 defeat.

Former Rule 5 outfielder Anthony Santander was recalled Friday to take Smith’s place on the 25-man roster.

Acquired from Toronto for international signing bonus slots in early March, Smith has been one of the few bright spots for a club currently on pace for its second straight sub-50 win season. The 26-year-old leads the Orioles with 41 runs batted in and ranks third in home runs (11) behind only Renato Nunez (15) and Trey Mancini (13). In 243 plate appearances, Smith is batting .249 with a .759 on-base plus slugging percentage.