Arsenal F.C.–Manchester United F.C. rivalry

Although Arsenal and Manchester United have frequently been in the same division in English football since 1919, the rivalry between the two clubs only became a fierce one in the late 1990s and early 2000s, when the teams regularly competed against each other for the Premier League title and the FA Cup. There was also an enmity between the managers, Arsenal's Arsène Wenger (1996–2018) and United's Sir Alex Ferguson (1986–2013), as well as club captains Patrick Vieira and Roy Keane.

Source: Wikipedia — Arsenal F.C.–Manchester United F.C. rivalry (CC BY-SA 4.0)