Merlie, not all doom & gloom.
I played 5 a side every week for nearly all last year, just stopped a couple of weeks before a marathon with no ill effects. I actually used it as a speed session of sorts, 3 miles roughly, but lots of bursts of speed. Garmin stats backed this up IMO.
Just get some speed work in , some hard fast runs in.
Does depend how competitive your 5 a side game is, friendly ish or real full on? If full on , then I'd say no.
Playing tomorrow actually, club run during evening. It is on astro turf, so carpeted, I always think how similar astro boots are to trail shoes. If playing on grass forget it.. Killer for ankles. Astro is nowhere near as bad.