BB is clearly on tilt at that moment after losing few buy ins during the day. sb plays any 2 cards type of players.

No Limit Hold'em $3.00/$6.00
Merge Network
6
players

Stacks:
UTG - UTG ($1,002.00)
MP
- MP ($600.00)
CO
- CO ($249.00)
BTN
- Hero ($1,539.74)
SB
- SB ($362.43)
BB
- BB ($806.17)

Preflop:
($9.00,
6 players) Hero is BTN with 9♥
9♣
UTG
raises to $18.00, 1
fold, CO calls $18.00, Hero calls
$18.00, SB raises to
$96.00, BB calls $90.00, 2
folds, Hero calls $78.00

Flop:
T♦
7♣
4♣
($324.00,
3 players - Hero: $1,443.74, SB: $266.43, BB: $710.17)
SB checks, BB
bets $162.00, Hero calls $162.00, 1
fold

Turn: 2♥
($648.00,
2 players - Hero: $1,281.74, BB: $548.17)
BB
bets $548.17 (all-in), Hero calls
$548.17

River: Q♠
($1,744.34,
2 players - Hero: $733.57, BB: $0.00)

Total Pot: $1,744.34
Hero
shows 9♥
9♣
(9h 9c)
BB shows 8♥
7♥
(8h 7h)

Hero wins $1,739.34