The long-running feud between Arsene Wenger and Jose Mourinho shows no sign of healing after another high-profile falling out on Sunday, this time the result of a dispute over territory.

Midway through the first half of Chelsea's ultimately comfortable 2-0 victory over Arsenal, which stretched its Premier League lead to five points, it became clear Stamford Bridge was not big enough for two of the game's strongest personalities.

Especially when a seething Wenger encroached into Mourinho's technical area raging about a robust tackle by Gary Cahill on his Chile forward Alexis Sanchez.