EXCLUSIVEReggie Bush is finally going to tie the knot ... THIS WEEKEND ... and the NFL star is getting married at the same place where LeBron James swapped "I dos" ... TMZ Sports has learned. We know ... the Detroit Lions running back and his longtime girlfriend/baby mama Lilit Avagyan are all set to have their wedding at the Grand Del Mar in San Diego this weekend.
Fun Fact -- The Grand Del Mar is TripAdvisor's #1 hotel in the United States.
LeBron got married at the exclusive upscale resort last year ... and despite the fact it was littered with A-listers, the hotel did a pretty good job of keeping things private -- which was probably a selling point for Bush.
Bush and Avagyan got engaged last year -- right around the time she gave birth to their daughter.
July 11th -- Reggie talked to TMZ Sports about the wedding ... telling us the ceremony is gonna cost him a FORTUNE!!!!!!