By London correspondent Tony Hughes

Mesut Ozil and Alexis Sanchez will be the two pivotal figures in Arsenal’s title challenge this season, according to a leading journalist.

BBC Sport chief football writer Phil McNulty has claimed that the club’s two record signings are integral to Arsene Wenger’s side securing their first league title in 12 years.

Ozil and Sanchez both scored in Arsenal’s 3-0 win over Chelsea on Saturday evening as they tore apart their London rivals with a brilliant attacking display.

Sanchez, who has spearheaded the attack in five of the team’s six Premier League matches this season, opened the scoring after 11 minutes at Emirates Stadium.

Theo Walcott added a second just three minutes later before Ozil sealed a stunning first-half performance with the third goal five minutes before half-time.

McNulty is in no doubt as to the key figures in Arsenal’s title bid.

“When Sanchez and Ozil are in this mood, Arsenal are a threat to anyone,” he wrote on the BBC Sport website. “The pair are world class when at the peak of their powers – and they certainly were here.

“Sanchez hurried [Gary] Cahill into a panic before a gloriously composed chip for Arsenal’s first, and he and Ozil combined to leave Chelsea’s defence embarrassed as the latter scored the third.

“Arsenal were outstanding in all areas – but Sanchez and Ozil provided the final flourishes with the sort of class that makes them central figures in all Wenger is trying to achieve this season.”

Arsene Wenger’s rampant side have climbed to third in the Premier League table with 13 points out of a possible 18, although they are five behind pacesetters Manchester City.

In other Arsenal news, Ian Wright has claimed that Wenger needs to axe these two of his favourites.