The new-look Manchester Mystics opened up with a win and a loss at the Betty Codona Classic in Nottingham at the weekend.
Great Britain point guard Georgia Jones top-scored with 23 points against the Suns, with fellow debutantes Dominique Allen and Jo Clayden adding 16 and 13 points respectively.
Against the Riders, Manchester found themselves 49-36 down going into the final quarter but almost claimed a remarkable comeback victory.
Rheanne Bailey, another new signing, scored 26 points as the Mystics, coached by Jeff Jones, drew level with a 16-3 run only to fall just short.
The Mystics now turn their attentions to the WBBL, opening their league campaign with a home game against Barking Abbey Crusaders on Saturday at the National Basketball Performance Centre in Belle Vue (3pm tip).