Which two-sport star is the only person to play in both a Super Bowl and a World Series?

Which Ravens quarterback won NFL MVP unanimously in 2019? Which Bills quarterback won the NFL MVP award for the 2024 season? Which Browns legend, later an actor, rushed for 12,312 yards in only nine seasons before retiring in his prime? Which Heisman Trophy winner was both an MLB All-Star and a Pro Bowl running back? Which quarterback began kneeling during the national anthem in 2016 while playing for the 49ers? Which kicker made a 66-yard field goal in 2021, then the longest in NFL history? Which kicker, born without toes on his kicking foot, set a record with a 63-yard field goal in 1970? Which Bears returner holds the record for most combined kick and punt return touchdowns?