Sports stars should not get Knighthoods, short of them dedicating large parts of their lives to charity..
They should be reserved for the lives of Johnson Beharry
From Wiki.
On 1 May 2004, Beharry was driving a Warrior Tracked Armoured Vehicle that had been called to the assistance of a foot patrol caught in a series of ambushes. The Warrior was hit by multiple rocket propelled grenades, causing damage and resulting in the loss of radio communications. The platoon commander, the vehicle’s gunner and a number of other soldiers in the vehicle were injured. Due to damage to his periscope optics, Pte. Beharry was forced to open his hatch to steer his vehicle, exposing his face and head to withering small arms fire. Beharry drove the crippled Warrior through the ambush, taking his own crew and leading five other Warriors to safety. He then extracted his wounded comrades from the vehicle, all the time exposed to further enemy fire. He was cited on this occasion for "valour of the highest order".
While back on duty on 11 June 2004, Beharry was again driving the lead Warrior vehicle of his platoon through Al Amarah when his vehicle was ambushed. A rocket propelled grenade hit the vehicle six inches from Beharry's head and he received serious shrapnel injuries to his face and brain. Other rockets hit the vehicle incapacitating his commander and injuring several of the crew. Despite his life threatening injuries, Beharry retained control of his vehicle and drove it out of the ambush area before losing consciousness. He required brain surgery for his head injuries, and he was still recovering when he was awarded the VC in March 2005. He suggested on at least one occasion that he would return to military service if physically able.