More than 18 months have passed since Rafael Nadal's last grand slam triumph, but the Spaniard insists his focus is only on the future.
The holder of 14 grand slam titles, Nadal is enduring his longest barren run in tennis' premier events since he claimed the first of his nine French Open titles in 2005.
The 29-year-old was knocked out in round one of this year's Australian Open and has failed to reach the semi-finals in his last six grand slam outings.
Yet Nadal says he is not motivated by a desire to recapture past glories.
"I think about being better than yesterday. I don't know where I'll get to, the only thing that motivates me is to play better and be better every day," the former world number one said ahead of his first match at this week's Rio Open.
"After that, we'll see what I'm able to do and what I can't do.
"I'm happy with what I do and I work hard to try to give myself opportunities to compete well, and to fight for the things that motivate me, but I don't focus on the past.
"At the moment there is a new generation that is probably going to bring about a change. But right now [Novak] Djokovic, [Roger] Federer, [Andy] Murray, [Stan] Wawrinka and myself or [David] Ferrer will keep being up there."
Djokovic has dominated men's tennis since being beaten by Nadal in the 2014 French Open final. The Serb has won five of the subsequent seven slams and will hold all four of the sport's major singles titles if he triumphs at Roland Garros later this year.