The Memphis Grizzlies were fed up with losing, and it showed in a desperate and determined fourth quarter against the Los Angeles Lakers. Mike Conley scored 11 points in the final period, Jaren Jackson Jr. had 27 and the Grizzlies ended a five-game losing streak with a 107-99 victory Sunday night. ''We tried to do everything just a little bit harder than we had been doing it, and tonight it showed,'' said Conley, who finished with 17 points and eight assists.