By Clare Brennan A series of must-see college basketball matchups headline the best bargain seats in sports this week. Another packed slate of sports is upon us this week, with the NFL and college football seasons in full swing and the NBA and college basketball just starting to heat up. With so many compelling fixtures on the docket, there are plenty of opportunities to catch sport’s must-see matchups in person. We have compiled a list of the week’s best deals and bargain seats across a range of sports, using insights from SI Tickets. The listed prices below are based on SI Tickets data gathe…