If you type April Fool into the search box, you can get the thread up. It was about Mr M missing the whole Clay Court season in 2012 to prepare for the assault on Wimbledon. I am ashamed to say I fell for it hook , line and sinker. This year I was more on my guard and spotted the boxing match one.
I remember that well - it was too well done to fool me for mor than a nanosecond, all the MW inner circle saying how regrettable but understandable it was etc etc. The boxing was was much more plausible.