Trainer Ron Grieves was a bit surprised when he was informed Quincy Welch wouldn’t be able to ride 7-5 morning-line favorite Call Me Lou in a nonwinners-of-three allowance race that serves as Friday’s feature at Northlands Park. Instead, Welch will ride the long-absent Northern Yankee in the 6 1/2-furlong sprint that drew six horses and goes as the second race.