The success of Jonathan Brownlee's older brother, Alistair, has proved to be both a help and a hindrance to the career of this gutsy young athlete.
Being two years younger and physically smaller, Jonathan has had to settle for playing the role of support act to Alistair over the past couple of years.
However, Alistair is not only a double world champion — he is also a world-class training partner and a barometer of success for Jonathan. And the younger Brownlee's track record suggests he may soon emulate or even surpass the astonishing achievements of his brother.
Not only has Jonathan recorded times that were quicker than Alistair's at the same age, but he has also been a champion in numerous age groups in international competition during his short career so far.
His winning streak began with the national youth title in both 2006 and 2007, and he followed this up with the national junior crown in 2008 and the European junior title in 2009.
He missed out on winning the World Junior Championship that year, taking silver instead, but he recovered to win the world under-23 title in Budapest in 2010.
Brownlee, who turns 22 three months before London 2012, has also translated his success onto the senior world stage by winning back-to-back world sprint titles. He also finished second in the 2011 ITU World Championship Series, being beaten only by his brother.
However, with Jonathan getting bigger and better every year, Alistair will have a difficult job making sure the family hierarchy remains the same in London.