Cincinnati Bengals linebacker Vontaze Burfict could miss his side's encounter with San Diego Chargers following an ankle injury.

Burfict, arguably Cincinnati's most important player this season, pulled up during training on Friday and is now listed as questionable for Sunday's encounter.

The linebacker is the league's leading tackler and has played the majority of snaps this campaign as a two-way player against the run and pass.

The news of Burfict's injury comes as right guard Kevin Zeitler was also ruled out for a second week running.