Question: Matthew Olosunde plays for which tier of the Professional Development League? 
Sentence (from "Manchester United F.C. Reserves and Academy"): The team is effectively Manchester United's second-string side, but is limited to three outfield players and one goalkeeper over the age of 23 per game following the introduction of new regulations from the 2016–17 season, an increase from the age of 21 which was introduced in 2012–13.
Relevant evidence: No