Short stack in BB facing raise and call

[armen13]

This is from the 20 rebuy which normaly does not belong here but I am posting here due to the two villains. First raiser is GB2005 and caller is bjolla. We are at the final two tables and I am in second to last place or so (around 16 left).

PokerStars No-Limit Hold'em Tourney, Big Blind is t8000 (8 handed) internettexasholdem.com

CO (t151396)
Button (t368714)
SB (t184188)
Hero (t54135)
UTG (t139120)
UTG+1 (t57760)
MP1 (t492270)
MP2 (t130088)

Preflop: Hero is BB with T[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">MP1 raises to t21000</font>, <font color="#666666">2 folds</font>, Button calls t21000, <font color="#666666">Hero folds</font>.

GB2005 has been very aggressive lately, and bjolla has shown a willingness to call big bets from him (and others). They have had a few big confrontations recently and GB took chip lead away from bjolla.

I didn't beleive I could isolate, and didn't think I would be in good shape against 2 opponents. Can I justify a shove here?