I won an autographed Football shirt in a raffle.I wanted to get it framed,but framing costs are about £130 {$195},which I currently find a little expensive.
Any ideas of the best way to store the shirt {preserving the autographs} while I save the money

Why don't you buy a frame and do it yourself!
If you have a 'Poundstretcher or Wilkinson's ' store near you,you can buy a frame that will fit the shirt for as little as £ 20. I used to make a lot of tapestries and always bought my frames from those shops. Max Spielmann also does a great range of frames. The bigger the frame, the deeper the rebate so you should get one to fit the shirt.