Quintana hasn't raced competitively since he won the Giro d'Italia in May and with the Vuelta coming up he wants to see if he has what it takes to win his second Grand Tour this year.
The Colombian is currently racing in the Vuelta a Burgos, a race which he won last year and he will be trying to win it again this time round but Quintana admitted if he isn't up to speed he will help his teammates instead.
Quintana looking to Vuelta a Burgos
According to Cycling News, Quintana said: "Right now I do not have a reference, [but] I hope to be fine. We have come to the Vuelta a Burgos to know what level we are at.
"The idea is that we try to win, but we must first check our physical condition and, if I'm a little short of pace, I'll help my teammates to compete in the race."
"As always, I trained very seriously and strongly in Colombia. But racing gives you a point you do not get in training.
"This race is to see what level I am at, as I had more than two months without competing and that is a lot compared to other rivals who have maintained their level and have competed in the Tour de France for example."
Quintana lacking sharpness - but may have edge
The 24-year-old may lack race sharpness in the Vuelta a Burogs but he will hope that being a part of the race will prepare for the three week stage race in Spain. His rivals Chris Froome and Alberto Contador have ridden a lot more than he has recently but have had serious injuries so they probably won't be at their best either.
Quintana may have the edge though as he has done a lot of altitude training whilst at home in Colombia meaning when it comes to climbing he should be quicker and stronger.
The Movistar rider admitted living at high altitude helps when training.
"Whenever I'm at my house or my parents' house, I sleep at 2,800 meters and train almost at the same altitude," he added."And when I stay with my parents, sometimes I like being in my room which is at 3,100 meters. Yes, you can say I'm always highly concentrated on training [while in Colombia]."
Quintana is currently in 11th position after the first stage of the Vuelta a Burgos and is only five seconds behind the leader Juan Jose Lobato who is also his teammate.