"He knows changes aren't permanent, but change is". So wrote late, great Rush drummer Neil Peart in the band's iconic 1981 song 'Tom Sawyer'. It's a line that also sums up Valentino Rossi's MotoGP career.
Like most, he has gone through soaring career highs, and crushing lows, during his time in grand prix racing. But unlike most, it was always a guarantee that Rossi would be back - at the sharp end and on the grid, no matter what happened.
Change is inevitable, though; it is unstoppable. And eventually the day would come where there would be no place on the grid for the nine-time world champion.