I like the under 7.5 here.

Two high caliber starting pitchers who each have been successful against each team this year.

Beckett vs TB:

6-15 @ TB: W 3-0, 9 IP, 1 H, 0 ER, 0 BB, 6 K
7-17 @ TB: W 1-0, 8 IP, 1 H, 0 ER, 0 BB, 6 K

Tampa Bay Batters Career vs Beckett: .211/.246/.340

Shields vs BOS:

6-14 vs BOS: W 4-0, 9 IP, 5 H, 0 ER, 3 BB, 5 K
7-16 vs BOS: L 9-5, 6 IP, 6 H, 6 ER, 3 BB, 8 K
8-16 @ BOS: L 3-1, 8 IP, 3 H, 3 ER, 1 BB, 6 K
9-11 vs BOS: W, 9-1, 8.1 IP, 7 H, 1 ER, 3 BB, 5 K

Boston Batters Career vs Shields: .241/.307/.410

Boston's still slumping and Tampa Bay is more confident than ever now that they're back in the playoff hunt, but they'll be slowed down by Beckett tonight. Boston will continue to struggle but could pull out a close low-scoring game with a couple key hits or bounces.

I see it being 4-1, 4-2 going either way.