TT facing shove on a rag flop

[Rounder101]

Table is all loaded with weak players.
Flop seen% of the table was almost at 50% when I sat down.
Ive sat around 30-40 hands, and never saw MP raise PF.
Full Tilt No-Limit Hold'em, $0.50 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Hero ($54.50)
Button ($46.70)
SB ($20.95)
BB ($41.05)
UTG ($47.15)
MP ($34.60)

Preflop: Hero is CO with T, T.
UTG calls $0.50, MP calls $0.50, [color=#CC3333]Hero raises to $2.75</font>, Button calls $2.75, SB calls $2.50, [color=#666666]1 fold</font>, UTG calls $2.25, MP calls $2.25.

Flop: ($14.25) 7, 8, 5 [color=#0000FF](5 players)</font>
SB checks, UTG checks, MP checks, [color=#CC3333]Hero bets $10</font>, Button folds, SB folds, UTG folds, [color=#CC3333]MP raises to $31.85 (All-In)</font>, Hero??