Rafael Nadal welcomes potential innovation in tennis, but the world number one unsurprisingly said he preferred no changes.
Several rule changes are being trialled at the Next Gen ATP Finals in Milan, including first-to-four games sets, a shot clock and no line judges.
Nadal said he was happy to see tennis embrace new ideas, even if the sport opted not to stick with the innovations.
"All the things that you can try, I welcome," the Spaniard said on Friday, ahead of the ATP Finals.
"I don't know if that's the way or not, but in some way, the fact that we are trying new things – always trying things – you can find a better way. If we don't try anything, then you cannot say that that works better or that works worse.
"Nothing is perfect. The net's stayed the same height as 50 years ago and the people are taller.
"It's something we need to find a way to have the best show possible."
Nadal said the players should eventually decide on the ideas, but the 16-time grand slam champion is more than happy with the sport the way it is.
"The players will all have to decide about these sort of things because we are affected," he said.
"If you ask me if you want changes, I will say no. I am world number one of the world and I have achieved a lot of things.
"If the game needs something to be more attractive for the fans, then that's the way the game needs to move forward."
19. Juni 2018
|Brathwaithe and weather thwart Sri Lanka|
|Southgate bemused by England-Tunisia penalty decisions|
|Kane disappointed by refereeing decisions despite England win|
|Koepka backed by coach to win more majors|
18. Juni 2018
|Rybarikova ousts Pliskova in Birmingham, seeds fail in Mallorca|
|Kane: England players had flies in our mouths|
|Lemar signs Atletico deal|
|Griezmann renews Atletico Madrid contract after rejecting Barcelona|
|Captain Kane comes good to heighten England´s aura of optimism|
|Wawrinka and Cilic cruise through at Queen´s|
|Saudi Arabia team safe after aircraft´s ´technical failure´|
|Courtois: Panama made unnecessary tackles|
|Thiem makes winning start on Halle grass|
|Tunisia 1 England 2: Captain Kane saves Three Lions|
|Trotz resigns as Capitals coach after Stanley Cup win|
|You´ll see the best of Hazard later - Eden predicts strong World Cup|
|Mickelson made statement over ´outrageous´ conditions, says Cowen|
|France will grow again - former coach Saint-Andre sees positive signs for Les Bleus|
|Lewandowski sets an example - Nawalka talks up Poland star|
|Runners and Ryders: Koepka shines at Shinnecock Hills as European list sees major changes|
|Mature and patient Belgium show success could be on horizon|
|Salah facing fitness test ahead of Russia v Egypt|
|South Korea´s Park has suspected hamstring tear|
|Sweden hero Granqvist full of praise for VAR|
|Iran v Spain: Isco impressed with Hierro´s seamless adaptation|
|Belgium 3 Panama 0: Mertens magic sets up Group G win|
|Jorginho has ´five-year Man City deal waiting´|
|Wolves sign Portugal goalkeeper Patricio|
|Pekerman criticises Barcelona´s treatment of Yerry Mina|
|Neymar misses Brazil World Cup training|
|FIFA opens disciplinary proceedings over alleged Mexico homophobic chants|
|Cisse hoping to be a pioneer for black and African coaches|
|World Cup over for Croatia´s Kalinic|
|Defiant Jones confident of upturn in England fortunes|
|Pogba a natural leader for France - Matuidi|
|Frampton to face Jackson as Fury continues comeback in Belfast|
|Team effort needed for Japan to stop James, says Nishino|
|Di Francesco extends Roma contract|
|It was a normal challenge - Switzerland equaliser fine by Shaqiri|
|Hamilton hopes to avoid ´boring´ French Grand Prix|
|Coutinho expects more Neymar punishment at World Cup|
|Cisse hails Mane as ´one of the best players in the world´|
|Forsberg falls flat as Granqvist proves Sweden´s hero|
|Sweden 1 South Korea 0: Granqvist´s VAR-assisted penalty settles tight game|
|Nishino concerned Japan players affected by Osaka earthquake|
|Isco pleased with Lopetegui´s Real Madrid appointment|
|Hazard hints at Real Madrid interest|
|Wasps disappointed as Wilson joins Scotland backroom staff|
|Hierro has full confidence in De Gea|
|Russia will stop Salah - Cherchesov|
|Allen signs new four-year Stoke contract|
|England issue update over injured duo Stokes and Woakes|
|Mancini leaves door open for Buffon´s Italy return|
|Alli calls for England to be ruthless in World Cup opener|
|Tahir rested as Proteas call up uncapped duo|
|Uruguay v Saudi Arabia: Centurion Suarez seeks World Cup redemption|
|Portugal v Morocco: Hat-trick hero Ronaldo hunts stricken Atlas Lions|
|Argentina didn´t draw because of Messi´s missed penalty - Maradona|
|Wenger heaps praise on France star Kante|
|If VAR helps referees, I´m not against that – Australia´s Sainsbury|
|Kimmich questions Germany mentality after shock defeat|
|Roberts to leave Warrington Wolves|
|Australia talent Arzani ready to make the jump from A-League|
|Lewandowski: I can be at the top until I´m 35|
|All Blacks winger Savea confirms Toulon switch|
|Free Fall available for France after red card rescinded|
|South Korea can progress from wide-open group, says Park Ji-sung|
|Gordon called up by Wallabies to replace injured Genia|
|Germany can still win World Cup, insists Werner|
|Man United & Real Madrid talk not affecting Milinkovic-Savic|