Stevie Mitchell added 13 points, David Joplin scored 12 and Kam Jones had 11 for Marquette (14-2, 5-0 Big East), which won its fifth straight game. Micah Peavy added 13 points, Thomas Sorber 11 and Caleb Williams 10. Ross’ steal and dunk, sandwiched by two 3-pointers in the opening minutes of the second half, helped Marquette cut Georgetown’s halftime lead from nine points to one. Key momentAfter Marquette erased Georgetown’s 38-29 halftime edge early in the second half, the lead repeatedly changed hands the rest of the way. In the second, Georgetown shot 31% and Marquette improved to 42.9%.