In 19 Premier League starts, he has scored 12 goals and assisted a further seven, subsequently prompting experts to label Arsene Wenger’s men a one-man team.
Keown, however, feels that in spite of his fabulous debut campaign Sanchez is still a level behind Sergio Aguero in the run in for best South American attacker in England.
“It’s a close call because they are both top-quality players who have the ability to absolutely embarrass defenders with their pace and skill,” he told the Daily Mail.
“But I think I’d take Aguero over Sanchez. He is in the top three strikers we have ever seen in the Premier League and has been performing at incredible levels of consistency since he first arrived.”
“It’s still early days for Sanchez, but he has certainly made a stunning start to his career at Arsenal.”
Aguero joined the Citizens from Atletico Madrid in the summer of 2011 and helped the club win the league in his debut season with the club.
He has gone on to score a total of 66 goals in 101 league appearances for Manuel Pellegrini’s side, including 14 in as many matches this season.
Unfortunately, the Argentine international has often been hampered with injuries and has missed the last six weeks after sustaining a knee injury in the victory over Everton at the beginning of December.