Ja Morant recently declared in a TV interview that he is one of the top five point guards in the NBA. The second-year Memphis Grizzlies’ floor leader played like one on Wednesday.He’ll get another chance to back up that statement when his team plays the Pistons in Detroit on Thursday night.The Grizzlies (33-32), who are jockeying for one of the play-in spots in the Western Conference, defeated the Minnesota Timberwolves 139-135 Wednesday behind a 37-point, 10-assist outburst by Morant.”He’s a special player,” coach Taylor Jenkins said. “He’s got a lot of room to grow. … When he comes out and performs like that, obviously it elevates the team. Tonight was a special night from him and a great bounce-back performance on the road in a big-time game for us, a big victory for us. We needed every one of his minutes.”Desmond Bane also had a big game with 22 points, including a couple of clutch 3-pointers in the late going. The Grizzlies overcame a 40-point third quarter by the Timberwolves and held the lead for keeps after Morant made a step-back 3-pointer with 2:46 remaining.”This was a high-level basketball game,” Jenkins said. “Got a little (out of sorts) during that third quarter, and we were able to regroup and battle and take the lead in the fourth quarter. They were making runs, and our guys stuck with it. We did just enough offensively and just enough defensively to come out with the victory.”The Pistons (19-47) continue to hold out many regulars in order to give their younger players extended playing time, while concurrently improving their draft lottery chances. They’ve dropped their past four games and have a 7-18 record since mid-March.Jerami Grant, Mason Plumlee, Cory Joseph, Josh Jackson and Wayne Ellington were among the players who were spectators during Detroit’s 102-99 loss to Charlotte on Tuesday.Rookies Isaiah Stewart, Saddiq Bey and Killian Hayes are learning how the grueling NBA schedule can sap their energy and effectiveness. They shot a combined 4-for-23 from the field, including a 3-for-17 showing beyond the arc. Stewart, who grabbed double-digit rebounds in six of the last eight games in April, secured just seven rebounds in 26 minutes. Hayes committed seven turnovers in 29 minutes.