Arsenal ‘had a point to prove’ after ‘difficult period’ – Arteta. Arsenal ‘had a point to prove’ after ‘difficult period’ – Arteta. Arsenal manager Mikel Arteta says his side “had a point to prove” following back-to-back defeats and praises his side’s reaction, as Kai Havertz’s stoppage-time winner secures a first-leg advantage in their Champions League quarter-final against Sporting.. MATCH REPORT: Sporting CP 0-1 Arsenal. Available to UK users only.. Champions League. 8 hours ago. Share page. About sharing