Former Red Sox infielder Will Middlebrooks paid tribute to Ryan Mallett, a former NFL quarterback, who passed away at age 35 in Destin, Florida. According to reports, Mallett died on Tuesday, June 27 due to a tragic drowning accident.Middlebrooks shared a couple of nostalgic photos of himself and Mallett, describing the late quarterback as his "best friend.""I lost my best friend today. Someone who has stuck by my side since we were just kids. The most competitive, hard headed, fun loving person I ever met. Nothing prepares you for this. I was lucky to have him for as long as I did. Rest in Love One-Five. We love you."Will Middlebrooks@middlebrooksI lost my best friend today. Someone who has stuck by my side since we were just kids. The most competitive, hard headed, fun loving person I ever met. Nothing prepares you for this. I was lucky to have him for as long as I did. Rest in Love One-Five. We love you.16754554I lost my best friend today. Someone who has stuck by my side since we were just kids. The most competitive, hard headed, fun loving person I ever met. Nothing prepares you for this. I was lucky to have him for as long as I did. Rest in Love One-Five. We love you. https://t.co/u8GQ86rl2mWill Middlebrooks and Ryan Mallett's friendshipMallett and Middlebrooks were Texas buddies from their early years. From 2012 through 2014, Middlebrooks, who is currently a NESN commentator, was a player in Boston, coinciding with Mallett's tenure with the New England Patriots.Buffalo Bills v Baltimore RavensIn the seventh grade, Middlebrooks and Mallett met at a football camp in Texarkana, Texas, and quickly become close. Their families grew close, and Middlebrooks' mother posted a statement on social media about Mallett, referring to him as her "other son.""The one who sat on my lap as a joke into adulthood and never, ever forgot my birthday," Julie Procell Middlebrooks wrote. "The other half of [Will Middlebrooks'] competitive soul. I want you back. I want you enjoying the life you made. I want to help your mom and can't."Julie Procell Middlebrooks 🐢🐊@juliefrances61I love you, man. My other son. The one who sat on my lap as a joke into adulthood and never, ever forgot my birthday. The other half of @middlebrooks competitive soul. I want you back. I want you enjoying the life you made. I want to help your mom and I can’t. #Ryanmallett134432I love you, man. My other son. The one who sat on my lap as a joke into adulthood and never, ever forgot my birthday. The other half of @middlebrooks competitive soul. I want you back. I want you enjoying the life you made. I want to help your mom and I can’t. 💔 #Ryanmallett https://t.co/J2jB2gO07gWill Middlebrooks made his Major League Baseball (MLB) debut with the Boston Red Sox in 2012 and remained there until 2014. He also had stints with the Texas Rangers, Milwaukee Brewers, and San Diego Padres.