Baku, January 7, AZERTAC Fernando Alonso has admitted that he sees seven-time World Champion Michael Schumacher as his greatest rival in his Formula 1 career, Sport24 reports. The pair fought it out for the 2005 and 2006 Drivers' Championships, with Alonso narrowly winning out in both seasons.Schumacher then came back in 2010, and the pair came close a few times as the German spent three years with Mercedes. Now, with Alonso seemingly out of Formula 1 for good, he has admitted that he sees the seven-time World Champion as he greatest foe."It’s difficult to choose one, obviously, if I have to say one, it will be Michael," Alonso admitted.“Not because any particular reason it was just because when I got to Formula 1 Michael was dominating the sport. "(When) you are in go-karts and you see Michael winning, you are different categories, you see Michael winning, and then eventually you find yourself fighting (him) wheel-to-wheel. So, those battles were definitely special, or more emotional at that time,” Alonso added.