Chivas and Tuzos star in Week 15 of Liga MX

With only three weeks to go in the regular season, the Liguilla race is heating up. Take a look at some of the Apertura's most promising storylines heading into Week 15.

Monterrey and Queretaro looking to keep fighting for a playoff spot

There are millions of ways to look at the various peaks and valleys the Liga MX brings. Queretaro and Monterrey are two teams that epitomize it. Both sides have been inconsistent at best, but a win on Friday would put one team fully in the playoff picture.

For Queretaro, they have often shown flashes of brilliance like in last week's 1-0 win over Club America, but there's been no shortage of moments when they've looked perplexingly mediocre.

Monterrey, on the other hand, are unbeaten in their last four league games, but before that, it was six games without a win for Antonio Mohamed's side.

For this weekend's winner, it should mean hanging out around the top ten of the table for at least another week. The loser will need to recover quickly.

The relegation battle at the bottom between Dorados and Morelia

If the season ended today, we would be talking about what a disaster Dorados' season was. After a couple early wins, the Sinaloa outfit look like a good bet for relegation.

This weekend's match against relegation rivals Monarcas Morelia could bring more trouble. Dorados is already several points back of Morelia in the relegation table, and new manager Luis Fernando Suarez will need to conjure up a positive result if he wants Liga MX soccer next year.

Meanwhile, Monarcas are sitting in 13th place and are coming off two straight defeats. Morelia is still in the mix of things for a late Liguilla push, but if they don't pick up the slack, Dorados may present a more serious test than they expect.

America and Toluca solidifying their chances

There's been nothing so far that suggests Club America and Toluca are playing the kind of soccer that will propel them to a league title. Sure, both teams are almost already mathematically in the Liguilla, but going in there winning sure doesn't hurt. A convincing victory from one of these teams on Sunday would go a long way towards establishing one of these teams as a Liguilla front-runner.

A must-win for Chivas and Pachuca

After postponing last week's Clasico Tapatio due to Hurricane Patricia, this weekend's schedule sees Chivas tasked with taking on Pachuca. Fresh off their Copa MX semifinal victory, there's room for optimism in Guadalajara. But three points away from eight place, Chivas need to start winning games.

Pachuca is no slouch and is a massive challenge for Matias Almeyda's side. The team from Hidalgo has been maddeningly inconsistent but has lost only once in their last five league games. They also have the same number of points as Chivas and their own game in hand against Cruz Azul.

No one has really managed to separate themselves from the pack near the middle of the table, and that's meant Chivas and Pachuca are remarkably still in the fight for a Liguilla spot. For both sides, Sunday's game represents must-win.