GREEN BAY, Wis. (AP) Green Bay Packers rookie cornerback Carrington Valentine often looked to veteran Rasul Douglas for advice as the seventh-round draft pick from Kentucky attempted to make a succe sful transition to the NFL.Valentine now has the biggest opportunity of his young career but no longer has Douglas around to guide him.The to the Buffalo Bills this week while 2021 first-round draft pick Eric Stokes remains on injured reserve leaves the Packers depending on some inexperienced cornerbacks such as Valentine and Corey Ballentine to work alongside Jaire Alexander and Keisean Nixon.Rasul was a mentor to me, Valentine said. I sat next to him every day. Im sad to see him go. I learned a lot from him. I appreciate everything. He didnt have to do that. But with the opportunity, just got to make the most of it.ADVERTISEMENT Green Bays cornerback i sues come at an inconvenient time.The Packers (2-5) have heading into Sunday's home game with the (3-5) and their standout receiving tandem of Cooper Kupp and rookie Puka Nacua.Nacua, who is tied for second in the league in catches (61) and ranks third in yards receiving (795), is questionable for Sundays game due to Malik Reed Jersey a knee i sue. Rams quarterback also is questionable due to a sprained ligament in his right thumb that prevented him from practicing this week.The Packers will face the Rams while mi sing Douglas, who had intercepted 10 pa ses since signing with Green Bay on October 2021. Nixon said he felt sick to my stomach after learning about the trade.Green Bay still has Alexander, a second-team pick in , but he hasnt been as effective as usual this year while dealing with a back i sue that caused him to mi s three games. Nixon, an All-Pro kick returner last season, has played 65% of the Packers defensive snaps this season - up from 28% in 2022.The Packers need Stokes to get healthy again. He hurt his hamstring Oct. 22 while appeared in his first game in nearly a full year due to a foot injury. He sat out a on Sunday and must mi s at least three more games due to his status.That leaves the Packers needing bigger contributions from Valentine and Ballentine. Shoot, I got all the confidence in them, Alexander said. Those are the next guys up. Those are the next guys in line and both of them have some experience playing, so its just going to be how soon theyll be able to make these plays that we need.Green Bay's secondary is looking to bounce back after the Packers allowed the Vikings to go 10 of 18 on third-down conversion attempts Sunday.Valentine caught the Packers attention with an impre sive preseason. With Alexander injured, Valentine was on the field for every defensive snap in a two weeks ago. Broncos quarterback Ru sell Wilson had some succe s going after Valentine in that game.I like how he battled and he kept competing, LaFleur said. I know that hes not afraid. Hell go contest you.Ballentine, 27, has played four games this season but was limited to special-teams snaps in two of them. He appeared in eight games for the Packers last season.The Packers would love to see one of those guys make the leap that Douglas produced during his time at Green Bay. The Packers signed Douglas off Arizonas practice squad and watched him before trading him and a 2024 fifth-round draft pick to Buffalo in exchange Natrez Patrick Jersey for a third-round pick.At his introductory media se sion with the Bills, Douglas talked about how he revitalized his career in Green Bay and praised former Packers defensive backs coach Jerry Gray, who to become Atlantas a sistant head coach for defense.I had a coach who actually knew the game and taught me the game, Douglas said. And they allowed me to play the game how I played the game with no restrictions.Packers defensive coordinator Joe Barry described Douglas as a guy that was always talking ball, always working on ball.He was phenomenal for the young players, so I want to thank him for everything that he did and I, we, will truly mi s him, Barry said. But its the nature of the busine s, unfortunately, in a situation for us, but what a great opportunity for the Valentines of the world, the Ballentines of the world. Theyre going to get an opportunity, and hopefully theyll take advantage of it.NOTE: Packers S Rudy Ford (calf) and LB Quay Walker (groin) didn't practice Friday. Both players are listed as questionable for Sunday's game. ___AP sports writer John Wawrow contributed to this report.___AP NFL coverage: