Union Overview

Bruno Guimaraes has offered a fascinating insight into the mentality of Mikel Arteta, describing the Arsenal manager as "very obsessed" with continuous improvement. The Brazilian midfielder, who arrived in North London this summer, believes the Spaniard's relentless drive is the primary catalyst behind the Gunners' perfect start to their Premier League title defence.

Chelsea suffered a 2-1 defeat to Arsenal at Emirates Stadium after finishing the match with two natural right-backs in midfield despite a £349m summer spend. Questions over squad depth persist as manager Xabi Alonso prepares his side to bounce back in upcoming fixtures.

Former Premier League winner Chris Sutton believes Arsenal are completely unstoppable following their perfect start to the new campaign. The Gunners have secured maximum points from their opening three fixtures, prompting Sutton to declare that their big-spending rivals cannot catch them.

Chelsea forward Morgan Rogers has insisted that the club's long-term trajectory remains positive despite suffering their first defeat of the Xabi Alonso era. The Blues saw their winning streak snapped at the Emirates Stadium, but Rogers is adamant that the squad is still in a period of significant transition and growth.