PORTLAND, Ore.—Portland’s Anfernee Simons played through his grief over his grandfather’s death with a career night that tempered an NBA season-best 56-point outburst by Atlanta’s Trae Young. Simons scored a career-high 43 points and the Trail Blazers snapped a four-game losing streak with a 136–131 victory over the Hawks on Monday night. “I came in with a heavy heart, but obviously a clear mind for what I needed to do,” Simons said. His grandfather, who had pancreatic cancer, passed away Sunday. Young shot 17 for 26 from the field, 7 for 12 from 3-point range—including a 3 from the center-court logo late in the first half—and 15 for 15 from the line for his career-high scoring total, and added 14 assists. His 56-point game eclipsed Kevin Durant’s 51-point performance for the Nets at Detroit on Dec. 12. Golden State’s Stephen Curry and Boston’s Jaylen Brown have had 50-point games this …