nice hand.
there's enough of value from Ax, draws and T9. sizing is fine.
if he ships it we probably have a fold though. since we have the
A
he cannot be shipping
A
x

hands so his range is probably something like this:
Board: 9
T
A
Equity Win Tie
CO 29.99% 29.56% 0.43% { Ad9s }
SB 70.01% 69.57% 0.43% { TT-99, ATs, T9s, QdJd, 8d7d, ATo }