'Friday Night Lights' Star LaMarcus Tinker Files for Divorce

"Friday Night Lights" and "Glee" actor LaMarcus Tinker and his wife Brittany, are dropping back and punting on their marriage.

According to court records from Washoe County, Nevada ... LaMarcus and Brittany on Wednesday filed a joint divorce petition. It's unclear what led to them calling it quits, but it's the end of a 5-year run as husband and wife. The estranged couple has 1 minor child together.

LaMarcus -- best known for playing Dallas Tinker on the hit NBC series -- has been down this road before. As we first reported, he and his previous wife, Shari Butler, also filed a joint petition to end their 2-year marriage back in 2014.

Back then, LaMarcus was earning around $2,100 a month, just…