She may be leading the way at the moment but world 400m champion Christine Ohuruogu is ready to accept the challenge posed by her fast emerging younger sister Vicky, insisting the sibling rivalry will drive her on.
Ohuruogu, who missed out on clinching a second straight Olympic gold medal when she finished second in London 2012, has had a year to remember, winning the 400m World Championship crown in Moscow by the narrowest of margins.
The 29-year-old was also named British Athletics’ and British Athletics Writers’ Association Female Athlete of the Year and most recently Sky Sports and Sunday Times Sportswoman of the Year.
But while her sights are on Rio 2016, she believes there could also be another member of the Ohuruogu household racing into the headlines in Brazil, 20-year-old Vicky.
Ohuruogu junior was part of Great Britain's bronze medal-winning relay squad in Moscow, alongside her older sister, while her 400m personal best currently stands at 53.09 seconds.
But while willing her younger sibling to raise the bar, the current 400m world champion insists she won’t be handing over the sprint mantle easily.
"I want her to beat me. Don't just think that because I'm the older one I have to be in front all the time,” said Ohuruogu. “You try to beat me because that will make me work as well.
"I hope that by encouraging her to set her standards high, she can see my work ethic and is willing to follow that.
"I'm not just saying this because she's my sister, but I really do like the way she approached the 400m.
"I think it's always going to be hard for her being compared to me and having me in the group.
"When I told her I was staying on for Rio I think I heard a slight groan because she knows she's going to have to deal with me.
"I've told Vicky I'll teach her everything I know but ultimately the work stops with her. I can't run a race for her. That's what she's going to have to learn herself.”