The Bengals declined Myles Murphy's fifth-year option on Thursday morning. The option would've cost $14.465 million for the 2027 season. It would've been fully guaranteed. That means Murphy is entering the final year of his rookie contract. He's just the fourth first-round pick that the Bengals haven't used the fifth-year option on, joining Billy Price, John Ross and, Cedric Ogbuehi. Murphy has certainly had more success than that trio. He finished with a career-high 52 tackles and 5.5 sacks last season. The Bengals are bullish on his future. "Myles really came on. He got a chance to really stay on the field and play and that’s when players that are young like him grow," Bengals Director of Player Personnel Duke Tobin said this week. "I think he doubled his playtime last year from the previous year. Really great to see him come on. He’s a 24-year-old guy that’s just starting to scratch the surface.…