4 Mile Speed Workout - :(

I decided to do speeed work today and I think I took it too far. I typically run between 9:15 and 9:45 per mile. Today I decided to alternate between my typical speed and sprints of 8:10 to 8:20 per mile. I am exhausted and think I hurt my ankle. I am sure it will get better tomorrow. On Saturday I am running 5 miles and I hope I am ready for it. It's supposed to be so nice this weekend and I can't wait to get out and enjoy a waterfront run.