Mark Appel: Former No. 1 pick makes MLB debut nine years after being drafted
Former No. 1 pick Mark Appel will make improbable MLB debut with Phillies at age 30
Philadelphia Phillies: Former top pick Mark Appel to make MLB debut
The most hyped prospect ever for all 30 MLB teams - ESPN
Mark Appel Makes MLB Debut After 9 Years of Struggles and Time Away from Baseball - FanBuzz
Extra inning baseball book reviews for 2020: The sequel to 'My Three Sons' in a non-major way … and it isn't their first Cowboy Monkey Rodeo – Tom Hoffarth's The Drill: More
Mark Appel gets the final out, 07/05/2022
Former No. 1 pick Mark Appel gets MLB call-up 9 years after being drafted
Philadelphia Phillies vs. Cincinnati Reds FREE LIVE STREAM (8/16/22): Watch MLB online
Former No. 1 pick Mark Appel fires scoreless inning in MLB debut 9 years after being drafted
The most hyped prospect ever for all 30 MLB teams - ESPN