(Portland, OR)  --  The Trail Blazers have signed former Oregon State guard Gary Payton the Second, Cam Oliver and Chinanu Onuaku to training camp contracts.  Payton appeared in 23 games last season with the Lakers on a two-way contract.  Onuaku was a 2016 second-round pick of the Rockets and has appeared in six NBA games.  Oliver played in the G-League last season after being undrafted out of Nevada.