A 17-14 loss to the Los Angeles Chargers dropped the Tennessee Titans to 7-7, one game ahead of the surging Jacksonville Jaguars. With each passing week, a winner-take-all showdown with the Jaguars in the regular season finale looks like more of a possibility. Will the Titans hold on to their place at the top? ... Next up is the Houston Texans, the team with the NFL's worst record but also a team that has pushed two of the league's elite to the limit in the last two weeks. ... Derrick Henry has a history of running over the Texans, but – based on the week's first injury report – he likely will be running behind a makeshift offensive line. ... Quarterback Ryan Tannehill has another ankle injury, which will limit his mobility (if he plays). Given the state of the offensive line, that could be a problem. ... If Tannehill can't go, rookie Malik Willis will make his third start. The good news is that one of his first two (and his only victory) was against the Texans. ... Based on their last two games, the Texans will use two quarterbacks. That will give Tennessee's defense, which played its best game in weeks against the Chargers, something else to consider. ... Both teams will have to deal with some unusual elements. The forecast calls for the temperature to be in the 20s with high winds for kickoff at Nissan Stadium. That is bound to have an impact on how both teams approach things.