knee problems in football and running clubs

[piggynose]

what should be done about this serious problem which affects countless footballers and of course clubs? i belong to a running and walking club, and the amount of blokes with knee injuries is quite scary. thats why i refuse to run, i prefer to walk.
take fulham for example, 3 or 4 players with knee injuries. its not something which heals in days!!
surely something should be done now.
but what?

[R1Geezer]

basically running is bad for knees and hips end of, nowt footballers can do, runners can do another exercise, like cycling for example.

[piggynose]

is there an exercise to build up or strenghten knees? say from a young age? or maybe zacmaster is right fit all footballers with bionic kneecaps.