Hi Guys, I would like your opinion on the river play here :
river: 5d (pairs the board)
hero checks, villain bets 8.75$ , hero??

I felt like a jam in this spot puts our opponent in a tough position. I had no clear reads but it was on a regular table that I watched closely. He seemed like an average thinking player, not too out of line but not strong either.

What would you do? call, fold, or raise?