Fernando Alonso remains the most complete driver in Formula One and should stay in the sport for the foreseeable future, according to Emerson Fittipaldi.
Alonso won the drivers' championship in 2005 and 2006 during his time at Renault, before finishing as a runner-up three times with Ferrari.
The Spaniard's returned to McLaren in 2015 has proved fruitless, with disappointing finishes of 17th and 10th at the struggling constructor.
There had been hopes that new regulations in F1 would level the playing field for the coming season, but McLaren endured more problems in pre-season and it is thought Alonso will contemplate his future with the team if he endures another campaign of struggle.
Last year, there were even rumblings that he may retire, but Fittipaldi - also a two-time world champion - expects Alonso, considered by many as one of the most gifted drivers of his generation, to continue enjoying success.
"To me, still today, Fernando Alonso is the most complete driver that's out there racing," Fittipaldi, speaking courtesy of Laureus, told Omnisport.
"He's incredible for testing and he's incredible as a racer. You know the famous phrase, when the flag drops the bulls**t stops. He's always there running very strong but sometimes the equipment is not there.
"He's a world champion and is extremely talented and very intelligent. He's going to leave a lot of legacy.
"I hope he doesn't stop. He has the physical ability to continue for many years, as long as he has the passion then he can continue for many years."
The dominance of F1 by Mercedes has gone unchallenged for the past three seasons, but Fittipaldi - a former McLaren driver - claimed the chasing pack can come back strong.
"Looking at the history of motor racing, the cycle and success of a team always happens," he added.
"Sometimes a team can be three, four or five years competing and winning.
"[But] McLaren can come back very strong, Ferrari can come back very strong, Williams can come back very strong. They've already won many world championships."
|Familiar surroundings, but uncertainty shrouds Arsenal´s 20th FA Cup final|
|Stoke tie down Cameron, Bardsley as Given departs|
|Cheika to stick with Moore as Wallabies captain|
|LeBron never believed he could eclipse Jordan|
|Maitland signs new Saracens deal|
|Asensio: Zidane used to be my idol|
|RB Leipzig rule out Keita, Werner and Forsberg sales amid Liverpool links|
|Injured Stokes to be assessed after training on Friday|
|Pokal glory should force Watzke and Tuchel to kiss and make up|
|Oxlade-Chamberlain studying Alves before FA Cup final|
|Hansen expects to end All Blacks reign after World Cup|
|PSG have gone backwards under Emery – Coupe de France glory won´t change that|
|Klopp can attract top players to Liverpool, says Gerrard|
|Napoli block Milik and Zielinski from Poland U21 duty|
|The curious case of Costa - how Diego will be remembered if he leaves Chelsea|
|He is not a hero, he is a God - Eriksson hails departing Roma icon Totti|
|Pomeranz strikes out 11 as Red Sox sweep Rangers|
|Stanley Cup playoffs: Kunitz sends Penguins through after epic game seven|
|LeBron, Cavs crush Celtics to reach NBA Finals|
|Copa Libertadores Review: Gremio storm into last 16, Guarani through|
|Chicago Fire 2 FC Dallas 1: Schweinsteiger´s men stay hot with fourth straight win|
|LeBron passes Jordan as all-time NBA playoff scoring leader|
|Keane: Football is unimportant after Manchester attack|
|De La Hoya: Mayweather-McGregor fight terrible for boxing|
|Former All Blacks coach Mitchell joins Bulls|
|Kraft in three-way tie for lead at Dean & DeLuca|
|Agassi rejected Djokovic before Graf intervention|
|Prandelli to replace Petrescu at Al Nasr|
|Zaha signs long-term Palace deal|
|Barca offered more money but Vinicius preferred Madrid - Pena|
|David Luiz took pay cut to return to Chelsea|
|Eredivisie play-off between MVV and Roda halted by crowd trouble|
|No way forward for Monk at Leeds amid Middlesbrough links|
|Bears sign Cruz to one-year contract|
|LeBron James guns for Michael Jordan record: It´s a personal goal of mine|
|Percival late show hands Saints dramatic derby win|
|Troyes 2 Lorient 1: Late Nivet strike settles play-off first leg|
|Nishikori, Wawrinka survive Geneva scares|
|Wolfsburg 1 Eintracht Braunschweig 0: Gomez penalty earns first-leg lead|
|Ruptured ACL sidelines Siegemund ahead of French Open|
|Gattuso denies return to AC Milan is a step back|
|Gutsy Garcia stays on track in Strasbourg defence|
|Kvitova practises at Roland Garros ahead of participation announcement|
|Man Utd´s Europa League title gave Manchester a lift - Ferguson|
|Carlsson outshines big names at Wentworth|
|Arbeloa, Calleri and Tore leave West Ham|
|Hull City confirm Marco Silva exit|
|I really want a title - Sokratis hints at Dortmund departure|
|Italy include Berardi in experimental squad to face San Marino|
|Man Utd boss Mourinho gets his way on Rashford as Southgate backs down over Under-21s|
|Norwich appoint Farke as Neil´s successor|
|Monk leaves Leeds after Radrizzani takeover|
|Raonic seals Lyon semi-final against Berdych|
|Arsenal must get in Hazard´s face, says Ramsey|
|Disappointed Slater understands Origin snub|
|Sagna departs as Manchester City exodus continues|
|Moses has no plan to stop Arsenal star Sanchez|
|Mathews: Malinga ready to shine in Champions Trophy|
|Van Garderen ends long wait for maiden stage win|
|Caballero the latest to depart Manchester City|
|England boss Southgate explains dropping Rooney|
|Cillessen could consider Barcelona exit in January|
|Navas leaves Manchester City|
|Kohli: England have no weaknesses|
|Djokovic enjoys first session with Agassi at Roland Garros|
|Man Utd captain Rooney: I have lots of offers|
|F1 Raceweek: Hamilton eyes ´unreal´ milestone, Ricciardo has unfinished business|
|Manchester City confirm Clichy departure|
|Mandzukic extends Juventus deal to 2020|
|Suarez out for 15 days with thigh injury|