Verified from 12 cited sources and the canonical match record.
Pre-match Elo1497 → 1520(+23)
Manchester United 37%63% Arsenal
Manchester United went in as the underdog by rating, 1497 to Arsenal’s 1530.
MUFCInfo match lineups
Datareference
attendance:supporting, result, starting-lineup, united-scorers
attendance:supporting, result, starting-lineup, united-scorers
engsoccerdata
Datadataset
attendance:supporting, result, starting-lineup, united-scorers