Complex sentence: Richard Allen Umberger, Jr. (born May 3,1982 in Pittsburgh, Pennsylvania), better known as R.J. Umberger (R.J. standing for Richard Jr), is an American professional ice hockeycenter for the Columbus Blue Jackets of the National Hockey League (NHL).
Split into simpler sentences: Richard Allen Umberger, Jr. (born May 3,1982 in Pittsburgh, Pennsylvania), better known as R.J. Umberger (R.J. standing for Richard Jr), is an American professional ice hockey player. He plays center for the Columbus Blue Jackets in the National Hockey League (NHL).