EASTON, Pa. -- Lonnie Grayson came off the bench to score a season-high 19 points and spark Army to a 69-63 win over Lafayette to complete a season sweep of the Leopards on Saturday afternoon.

Grayson has become a spark off the bench and now has scored in double figures in four straight games, all wins by the Black Knights (11-10, 6-2 Patriot).

Lafayette hit three 3-pointers in the first four minutes of the second half and extended their four-point halftime advantage into a 48-36 lead. Grayson ignited an Army comeback by scoring at the basket and hitting a 3 and the Black Knights tied the game at 52-52 with 9:50 left and surged to a 60-52 advantage on Grayson's layup with 4:52 left.

Alex Petrie paced Lafayette (5-14, 2-6) with 20 points and Justin Jaworski added another 15.

Army posted a 77-69 win over Lafayette at West Point and swept the series for the first time since the 2013-14 season.