The Chilean international is set to meet up with his new team-mates later this month after agreeing to join the club.
Jenkinson says the deal has caused a real stir at the training ground, with the whole Gunners squad excited about the new arrival.
If you’re world class then you fit into any side and he’s definitely in that categoryCarl Jenkinson
“He is a fantastic player, everyone at the club is buzzing about it,” the right back told Arsenal.com. “It is a similar feeling to when Mesut Ozil signed last year.
“He is world class and they’re the sort of players you want to see at the club. The squad are buzzing as much as the fans, because if you’re going to push on as a club and really compete for things, you need to sign top players.
“We have done that with him for sure - it is a fantastic addition. Everyone is over the moon that we have signed someone of that calibre.
“He’s quick and direct, he can play up front and on the wing, and he is very dynamic. He will definitely fit the Arsenal style of play, and he is very similar to Theo in the sense that he is very quick and tricky.
“If you’re world class then you fit into any side and he’s definitely in that category.”
Jenkinson cannot wait for the new season, and says that winning the FA Cup has only increased the squad’s hunger for trophies.
“Once you’ve got one, want to experience it again,” he said. “Everyone was over the moon with winning the FA Cup - it was such a big thing for us all.
“Fingers crossed we can compete on all fronts this season. We have the squad and we are signing players like Sanchez, so I don’t see why we can’t.”Copyright 2015 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 14 Jul 2014