I root for the whole team.
I do specifically root for Sanchez as well. The man's professional career has been done a disservice by his leadership, his private life has been publicly scrutinized and criticized like few others, the media has seen fit to mock and give in the hyperbole when describing his performance, skill and intelligence while the fan base has done the same while engaging in revisionism - denigrating his successes has as really due to the team while blaming him as the sole real cause for the team's defeat.
All this mirrors Stalin's axiom that it is not enough to just kill a man, his reputation has to be destroyed first.
The quintessential underdog who has handled it all with grace and humility. How can one not root for him?