As it stands right now CLE is winning and the CWS are in a tie, so we will be 2-4 games out from both of those teams in terms of a wildcard as a backdoor. 2-4 games in a week Sounds like a lot, but CLE and CWS play each other in CLE, and if one team sweeps the other, as long as we win, the WC is a viable option. With that being said, we need to win at all cost, not just for the division, but for any hope at the playoffs period.
Edit, MIN just took a lead so here is how it looks outside the AL East...
CHW (Div Lead) 91-61 ... ...
CLE (WC Lead) 90-63 1.5 ...
BOS 88-64 3.0 1.5