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."
22. November 2017
|Bauza sacked by Saudi Arabia|
|Browns´ Josh Gordon returns to practice|
|Azarenka confirms place at ASB Classic|
|Willian: For me, it was a penalty|
|Akinfeev keeps first Champions League clean sheet since November 2006|
|Messi rested by Barcelona side for Juventus clash|
|CSKA Moscow 2 Benfica 0: Goncharenko´s men boost progression hopes|
|Qarabag 0 Chelsea 4: Hazard, Willian lead Blues into last 16|
|Wood not giving up hope of Ashes role|
|If he´s fit, he will go – Wenger backs Welbeck for World Cup call|
|Gatland delighted by North´s return|
|Pressure the key to beating All Blacks, says Gregan|
|FIA president Todt to run unchallenged for re-election|
|Niasse banned over diving charge after FA rejects Everton appeal|
|Sri Lanka want Tigers head coach Hathurusingha|
|F1 Raceweek: Hamilton hunting more records - Abu Dhabi GP in numbers|
|North to leave Saints and return to Wales|
|Real Madrid´s Carvajal faces UEFA investigation over APOEL booking|
|Dimitrov never lost belief in own ability|
|Everton fined €30,000 over fan trouble against Lyon|
|No change in Everton manager hunt, says Unsworth|
|Chiellini to miss Barcelona match with thigh injury|
|McIlroy to make return in Abu Dhabi|
|Maitland among four Scotland changes for Wallabies clash|
|Former Everton and Nigeria striker Yakubu retires|
|Robinson talks up England World Cup chances|
|The Ashes: Series predictions vary wildly ahead of first Test|
|Liverpool looking into claims of Seville police assault against fans|
|Smith surprised by Australia selections - Cowan|
|Toure hails Foden as the ´future´ of Manchester City|
|Record Ronaldo nomination as Real Madrid dominate UEFA Team of the Year candidates|
|Williams call on Kubica for Abu Dhabi testing|
|Heynckes stay is ´best solution´ for Bayern, says Robben|
|Racing allow O´Gara to join Crusaders|
|Courtois parks Chelsea contract talks|
|Parker team make ´final offer´ for Joshua fight|
|Wigan´s two-goal Colclough makes mad dash to witness birth of son...in full kit!|
|Sevilla boss Berizzo diagnosed with prostate cancer|
|Hollioake urges England to grind down ´fragile´ Australia quicks|
|Manchester United move still a possibility for Atletico star Griezmann|
|Carragher slams Liverpool for playing ´like children´ in Sevilla collapse|
|Replacing you might not be a great idea! – Buffon grateful for Rakitic tribute|
|Messi closes on century but Pogba must do more – Champions League in Opta numbers|
|Memorable Ashes Moments: Oh my Broad! Stuart stuns Australia with 8-15|
|Skoko wants Australian coach as Arnold emerges as Postecoglou replacement|
|Everton yet to make contact with Van Gaal|
|Ball wins fitness battle to earn England selection for Ashes opener|
|Aussies sweating on Marsh fitness|
|Lakers rally past Bulls|
|That´s not how I´d want my players to act - Root bemused by Lyon|
|MLS Review: Sounders a step closer to final, Crew and Toronto in stalemate|
|Earl suffers ACL injury as NRL return is put on hold|
|Ben Yedder trolls Liverpool after dramatic Sevilla comeback|
|Maxwell called into Ashes squad as cover for Warner|
|´World class´ Insigne can´t be rested – Sarri|
|Smith: Australia considering replacement for Warner|
|I say one thing and you write something else - Angry Ronaldo brushes off media|
|Yankees All-Star Judge undergoes shoulder surgery|
|Griezmann needs support of Atletico and fans – Simeone|
|Monaco paid for mistakes in Champions League exit - Jardim|
|We had to rely on personal pride - Berizzo praises Sevilla´s stunning comeback|
|Championship Review: Coleman loses first Sunderland game, Fulham win nine-goal thriller|
|City fans get first sight of local star they crave in Phil Foden|
|Gunes wants more after historic Besiktas Champions League qualification|
|Allegri plays down Dybala-Messi comparisons|
|Extra rest helped Rose shine in Dortmund – Pochettino|
21. November 2017
|Zidane: We knew Ronaldo, Benzema goals would come|
|It feels like we lost - Klopp frustrated at Liverpool´s second-half collapse|
|It depends on Foden - Guardiola puts ball in teenager´s court|
|Siddle excited by Smith´s duel with Root|