Sturridge's ability has never been in doubt- his mentality has.
It is interesting listening to other pro's talk about injury. How fear of injury can slow you down, how it can rob you of confidence going into challenges, thereby increasing the risk of injury, in a vicious downward spiral.
I don't think that Danny is a bottler, or shirker, or hypochondriac. I don't know whether he has physically lost his pace, or whether mentally he is afraid to stretch himself through fear of injury.
When you look at his age, and how few games he has played over his career, he certainly isn't suffering from burn out.
But whatever the reason, when you can't make a difference in a cup semi final, or early round tie against Plymouth, there is a problem. His wages will stop the overwhelming majority of clubs from buying if a significant fee is asked for as well.
Someone may gamble. Maybe a change of scenery, manager, and team would help? And if he really wants to play - he will make it happen. My guess is that he will see out his contract here, and head for the MLS.