Forty-three verified voices from across tennis history — on toughness, pressure, fear, focus and the courage to admit you're not OK. Every card carries its source.
← Back to the handbookEvery champion says the same thing: at the top, the strokes are equal — the mind decides. That's the science of growth mindset and self-efficacy: toughness is built, not born.
"Competitive toughness is an acquired skill and not an inherited gift."
"Mental strength is not a gift. It's something that comes with work."
"What matters isn't how well you play when you're playing well. What matters is how well you play when you're playing badly."
"Tennis is more a game of the mind than a game of the body… if your head doesn't believe it, your body will obey the command to lose."
"Tennis is mostly mental. You win or lose the match before you even go out there."
"If I'm known for one thing, it's toughness — my ability to keep going when things look bad."
"You've got to grit your teeth and find a way to win when you're not playing your best tennis — that's what I'm proud of."
"Most of my losses have been because of the things going through my mind, not my physical condition."
"Mental toughness is the most important thing in tennis right now — everyone can play; the ones who handle the pressure are the biggest."
"I hate to lose more than I love to win. Tennis is ninety percent mental."
"Experience tells you what to do; confidence allows you to do it."
"If I don't practice the way I should, then I won't play the way that I know I can."
"My greatest point is my persistence. I never give up in a match. However down I am, I fight until the last ball."
The greats don't feel less pressure — they read it differently. That's challenge-vs-threat and cognitive reappraisal: the same butterflies become fuel instead of fear.
"Pressure is a privilege — champions adjust."
"Losing is not my enemy. Fear of losing is my enemy."
"There was always a devil inside me whom I had to fight. And the devil was fear of failure."
"I drew my strength from fear — fear of losing. I don't remember the games I won, only the games I lost."
"Of course I'm always nervous. That's always been positive for me. It means I really care."
"The pressure is something good… I like to dance in the pressure storm, because that's where I bring out my best tennis."
"You have to find the joy in suffering. You have to fight, you have to suffer — but you have to enjoy the suffering."
"People are struggling to feed their families — that's real pressure, that's real life. I'm getting paid to do what I love."
"I'm not afraid of anyone, but sometimes I'm afraid of myself. The mental part is very important."
"The mind is a battlefield… if you didn't get it right in your mind, you'd lose."
Champions live inside the point and then release it. That's process focus and attentional control — the present point is the only one you can play.
"When you're playing a point, it has to be the most important thing in the world. But when it's behind you, it's behind you."
"You are never really playing an opponent. You are playing yourself, your own highest standards."
"The time your game is most vulnerable is when you're ahead; never let up."
"You can't spend any time worrying about whether you're going to win or lose. Focus only on getting better."
"In tennis you're out there by yourself. No caddies, no coaches. You do it alone in the arena — that ups the ante."
"When I'm on the court, my mind is boiling, constantly boiling… like tea. It just comes out, even if I don't want it."
"I have three personalities: good Goran, bad Goran, and emergency Goran."
"If I wasn't emotional, I guess I'm probably in the wrong sport."
"The biggest triumph was how I managed not to think of absolutely anything except my game plan, what I'm going to execute."
"I said OK, everything is gone, I just have to relax and enjoy the match. And I came back."
The bravest tennis wisdom of this era is the most honest: champions naming anxiety, depression and burnout out loud. It models the first step of acceptance and self-compassion — you can't refocus what you won't admit.
"It's O.K. to not be O.K., and it's O.K. to talk about it. There is usually light at the end of any tunnel."
"A champion is defined not by their wins but by how they can recover when they fall."
"A tennis court — for me, especially — triggers a lot of those fears, a lot of anxiety."
"I was lonely, depressed, negative… I had suicidal thoughts and was struggling to get out of bed, let alone play in front of millions."
"I really suffered a lot, mentally more than physically. My body was screaming for help for a long time."
"A lot of days, I did not feel like myself… I felt like I was carrying the world on my shoulders."
"Thanks to all those who prevented me from retiring. I was very close to never playing again — and now, here I am."
"My happiness wasn't dependent on the results. Success is knowing that I've given absolutely everything I can."
"When the attack happened, the first priority was life itself — getting better. The tennis came after."
"I learned to deal with losing without having my spirit or confidence broken — which helped immensely over time."