Houston Astros first baseman Trey Mancini received a warm welcome upon his return to Baltimore for the first time since being traded. The Houston Astros acquired Trey Mancini from the Baltimore Orioles at this season’s trade deadline. Mancini, who is known for his stellar play, impeccable character and conquering cancer was and still is a fan favorite. Mancini is slashing .266/.331/.460 over the course of his six-year career, all of which aside from two months, has been spent with the Orioles. He was their paragon, clubhouse leader and their star on the field. He left through no fault of his…