Saturday: Walker Art Center’s “Momentum:  New Dance Works 2013” heads outdoors this Saturday for a celebration of the Minneapolis Sculpture Garden’s 25th anniversary. Three alumni from the groundbreaking series will mark the occasion with newly commissioned pieces. Kenna Cottman plans to draw upon Senegalese “lutte” wrestling for a drum-and-dance work, while Chris Schlichting unveils a sequel to his fantastic 2013 creation “Matching Drapes” and percussive movement dynamo Kaleena Miller brings the beats alive, set to live music. If it rains, the show will move into the Walker’s McGuire Theater. (11 a.m. & 2 p.m. Sat., free, Minneapolis Sculpture Garden, 725 Vineland Pl., Mpls., 612-375-7600,