CHICAGO (AP) — The Chicago Bulls have signed guard Brandon Sampson to a two-way contract and waived guard Tyler Ulis.Sampson averaged 7.9 points in three seasons at LSU and went undrafted this year. He figures to split time between Chicago and the G League's Windy City Bulls.Ulis had arthroscopic surgery on his left hip last week. He appeared in one game for Chicago.The Bulls announced the moves on Thursday.___More AP NBA: https://apnews.com/tag/NBA and https://twitter.com/AP_Sports