NIKE Knee Sleeve | Hoping To Jog Further.

For some reason, I feel pain at my knee after about 1km of light jogging. Has been a problem for months, and I suspect that my knee was gonner. Got a Nike Knee Sleeve as recommended by a friend for outdoor activities. Cost about 27 bucks. Will need some training before going back to my usual 2.4km jogs and runs. Can't wait till the horrible HAZE is over.