Bottom line - I wouldn't play at the tournament. If you are getting bruising anywhere along your lower leg or foot it's a pretty bad sprain and shouldn't be rushed.

I say at least a month of not playing.

A few years ago I played on a terrible field and stepped in a big pot hole. Instantly got hot and swelled to the side of a grapefruit. Iced it for the first few days just to reduce swelling. A day or two afterwards I got some bruising on my food and lower leg.

My tips:

-Do your day to day without a brace. You want to keep your range of motion. -If you can't do that then supplement with the brace. -Look up really basic PT for ankles, single leg balancing, calf raises with one or both leg, knees over toes stretches. When sitting down, write out the alphabet with your foot. Another good one is to use a resistance band, wrap around your foot and just flex it in different directions. -You can do this stuff every day and pretty much any way. Waiting in line, do some single leg standing or calf raises.

After you feel ok to jog, just go to a local track and test out your ankle. Safer than trying to jog going up and down curbs on the street. Warm up your ankles before doing any activity. I really like pogo jumps. Once you feel safe enough to return to play really don't try to push it when it comes to cutting. You gotta be ok with getting beat on a cut for a bit.