Despite Rubin's progress, however, Rondon said that the club would not plan too far ahead in what is a "difficult competition".
"It was a very difficult match," UEFA.com quotes him as saing. "We knew Levante had a lot of fight and they would cause us problems. It went to extra time but we were strong physically and we managed to win. I'm happy, we did a great job. We have to continue like this.
"Rubin's objective has always been the same: we take it match by match. The knockout stages are pretty difficult and this is a difficult competition.
"There are teams with a lot of experience. I have no preference who we face now. It's all pretty much the same in the end - the competitive teams who have made it this far have made it this far for a reason."
Rondon scored the opener in the first half of extra time in Rubin's win on Thursday night.