ATLANTA — With Deja Foster coming up big down the stretch, Georgia Tech finally beat a ranked team.
Foster converted two three-point plays in the final 4:16 and Alex Montgomery scored 20 points to lead the Yellow Jackets to a 70-57 upset of No. 21 Michigan State on Wednesday.

Georgia Tech (6-2) had already lost to No. 1 Connecticut and No. 9 Texas this season, playing well in both games but coming up short both times. This time, they finished off their first win over a ranked team since beating No. 4 Maryland on Feb. 1, 2007.

Foster, who scored 11 of her career-high 13 points in the second half, pushed the Yellow Jackets to a 56-50 lead with her first three-point play. She converted another with 2:52 remaining for a 62-53 advantage. Montgomery made four straight free throws in the final minute to put it away.

"Down the stretch, Deja stepped up huge for us," coach MaChelle Joseph said. "She hit a big 3-pointer (early in the second half to erase Michigan State's final lead) and followed it up with two three-point plays. She put us on her back for a stretch that put us over the top to win the game."

Michigan State (6-2) raced to a 14-2 lead in the first game of a doubleheader in the ACC/Big 10 Challenge.

The Yellow Jackets chipped into the margin and pulled ahead for the first time on Montgomery's 3-pointer just before the buzzer for a 28-26 halftime lead.

Aisha Jefferson led the Spartans with 14 points, but Kalisha Keane was their only other player in double figures with 10. Michigan State outshot Tech from the field but couldn't overcome 28 turnovers, which led to 26 points for the home team.

Jacqua Williams added 18 points, seven assists and six steals to the winning effort.

"Jacqua has really flourished over last few games," Joseph said. "Her points have gone up, her steals have gone up and her assists have gone up. I think having that calming figure at the point position has really helped us."