NFL Commissioner Roger Goodell says he met with Cleveland Browns owner Jimmy Haslam on Tuesday about the federal investigation into his family’s truck stop chain.The FBI alleges widespread fraud of customers at Pilot Flying J, the country’s largest diesel retailer. Haslam has said he won’t step aside from the Browns or as the company’s CEO.Asked at a pre-draft event if he was concerned, Goodell said “of course when you have that type of thing.”Goodell adds: “Jimmy’s doing everything he’s asked. He’s cooperating. He wants to make sure that he’s doing all the right things in that regard, and he’s assured us he’s going to.”Caution with RG3Washington Redskins coach Mike Shanahan said he will be more cautious with Robert Griffin III, his franchise quarterback, from now on, to the point that he’s going to make sure that Griffin “never plays if he’s not 100 percent.”Griffin, the league’s offensive rookie of the year, is recovering from reconstructive surgery after reinjuring his right knee in a playoff loss to the Seattle Seahawks. Shanahan has been criticized for not removing Griffin from the game earlier, especially when Griffin was limping noticeably after a throwing a touchdown pass in the first quarter.Briefly • Paying tribute: The NFL will hold a moment of silence at Thursday’s draft for the victims of the Boston Marathon attacks and the fertilizer plant explosion in West, both tragedies that took place last week. • Cardinals: Four players signed contracts, including former Converse Judson standout and Texas State track star Robert Gill, a receiver who spent the past two seasons in the Arena Football League. Also signed were former Jacksonville Jaguars receiver Jarrett Dillard, former Arizona State offensive lineman Paul Fanaika and tight end Alex Gottlieb. • Packers: Running back Brandon Saine and linebacker D.J. Smith were released. Saine rushed for 69 yards in 2011 and played six games last season before a knee injury ended his season. Smith had 80 tackles and two sacks in two seasons with Green Bay. • Browns: Linebacker Quentin Groves was arrested for suspicion of solicitation last week, one of 15 men arrested during a three-day prostitution sting operation by police.