Even at 31, his famously high stamina shows no signs of diminishing, as data collected by Liverpool's backroom staff proves.
"Stamina-wise I am one of the strongest players, even at 31," Kuyt told Liverpoolfc.tv. "Raul Meireles was also good on the stamina tests as well and to be honest all the players are good on the fitness tests. This team is in very good shape.
"In football you never know, but at the moment I'm feeling really fit. Physically maybe I'm stronger than ever, and hopefully I've got many years left because football is one of the best things you can do."