would A9 make that play? good fold.
Yes I forgot about A9 which is also possible and would play like TT, but I'm not sure he would have called a preflop raise with A9, given his tight style. Stomach feeling still says 88, 99 or TT and it felt wrong to push in a call with my pair here. In fact he could also hold QQ although I think he would have raised me preflop then.

A bit later in the session he played a very similar hand with two other players involved. Same bet size on the flop, but he got called on the flop instead of reraised and took a nice pot with 999 against a straight chasing KQ (flop T9x rainbow) and QQ. This hand made me pretty sure my JJ fold had been good. But you never know...

JJ is difficult to play I think. I tend to play it with more aggression than before, but still I play it like a smaller pocket pair quite often. Depends on the table and position.