Carrie Underwood, Dierks Bentley and Kix Brooks have sent their condolences to fellow country singer Rachel Bradshaw after her husband, American football star Rob Bironas, was killed in a car crash on Saturday night (20Sep14).

The former Tennessee Titans kicker lost control of his vehicle and slammed into a line of trees in Nashville, Tennessee before his car overturned.

He was admitted to Vanderbilt University Medical Center, where he was subsequently pronounced dead at the age of 36.

Police have not found any evidence to suggest alcohol or drugs were involved in the accident.

The news of Bironas' passing hit the country community hard and a slew of celebrity friends took to Twitter.com to pay tribute.

Upon learning of the news on Sunday morning (21Sep14), Underwood wrote, "Shocked and saddened this morning at the passing of Rob Bironas. Such a nice guy. Sending prayers and love to his family..." and Randy Houser posted, "Sad to hear of the passing of @RobBironas last night. Please pray for his wife and family."

Bentley shared a photo of himself with Bironas, who was actively involved in Nashville-based country music fundraisers and events, and in the accompanying caption, wrote, "i don't know anyone that didn't like rob bironas. lot of heavy hearts in nashville today. prayers for his family", while Brooks stated, "So sad - lost good buddy@RobBironas last night - heartbroken for dear friend @RachelTBradshaw - he was a great guy - and an amazing talent."

Charlie Daniels, Jerrod Niemann, John Rich, The Oak Ridge Boys and Rascal Flatts' Joe Don Rooney are also among the stars who have paid tribute to the tragic sportsman.

Bironas signed with the Tennessee Titans in 2005 and remained with the team for nine seasons, during which he became the fourth most accurate kicker in National Football League (Nfl) history. He was released by the Titans in March (14) and had trained during the off-season with the Detroit Lions and the Tampa Bay Buccaneers.

Bironas wed Rachel Bradshaw, the daughter of Hall of Fame quarterback Terry Bradshaw, in June (14).