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."
|Red Wings´ Green battling ´virus that attacked his liver´|
|They said I couldn´t score goals – Ibrahimovic hits back at early critics|
|Slater charged, set to miss Grand Final|
|Rose not changing approach alongside Woods|
|Woods ready to ´hang in there´ at East Lake|
|Shaqiri´s time will come at Liverpool – Klopp|
|Richarlison: I used to copy some of Neymar´s haircuts|
|Brady says Gordon is ´really eager to get in there´ despite limited practice|
|NBA changes clock-reset, ´clear path´ foul rules|
|Tigers´ Martinez will play final game on Saturday before retiring|
|Sanchez to start for Man United – Mourinho|
|Speight saves Ulster in thrilling Cheetahs draw|
|Simmonds at the double as Chiefs stay perfect|
|Woods, Rose share Tour Championship lead|
|Ice-cool Shoaib denies Afghanistan in final over|
|CAF Champions League Review: Wydad Casablanca out as TP Mazembe pay penalty|
|Eden inspires rout as Castleford book Wigan semi-final|
|Thiem & Wawrinka reach St. Petersburg semi-finals|
|No change to Aguero selection despite new contract, warns Guardiola|
|Woods and Rose share Tour Championship lead|
|Wigan Athletic 1 Bristol City 0: Three on the trot for improving Latics|
|Josh Rosen will play ´when time is right,´ Cardinals GM says|
|Eagles RBs Ajayi & Sproles out Sunday v Colts|
|Ronaldo looking forward after Champions League red card - Alex Sandro|
|Rangers fire manager Jeff Banister after four seasons|
|Inter captain Icardi can improve - Spalletti|
|Jadeja and Rohit shine as India maintain 100 per cent record|
|Fisher shares lead in Vilamoura after record-breaking 59|
|Messi the best I´ve seen - Lamela|
|Silva demands end to Gomes ´rumours´ and targets early October return|
|Milner over Pogba, says Souness|
|Brazil call up Malcom, drop Thiago Silva and Willian|
|Denly thought Test chance may never come|
|Benitez tells FA to examine Zaha red card comments|
|Bjorn unsure of future after Ryder Cup|
|Tebas still optimistic over Girona-Barcelona in Miami despite RFEF setback|
|Emery promises more chances for frustrated Leno|
|Cahill considering Chelsea departure in January|
|Kaepernick to receive Harvard´s highest honour in African, African-American studies|
|Defending champion Ostapenko dumped out of Korea Open|
|Mourinho is an inspiration - Nuno|
|Witty Wilson ´delighted´ to be praised for Fisher heroics while sitting on couch|
|Burns, Denly and Stone in England squad for Sri Lanka Tests|
|Aspas reveals interest from Real Madrid, Atletico|
|Arsenal´s Mkhitaryan a doubt for Everton match|
|Klopp demands Liverpool ´stay angry´ against Southampton|
|Long-serving Tabarez signs four-year Uruguay extension|
|Injured Mendy ruled out of Cardiff trip|
|Douglas Costa out up to a month with ankle & thigh injuries|
|Slater shrugs off Feki hit amid Grand Final suspension concerns|
|Crisis? What crisis? Klopp unconcerned by Salah form|
|I didn´t convince him, he decided for himself - Guardiola says thanks to Aguero|
|Leno frustrated by Arsenal bench role|
|Joshua almost 2st heavier than Povetkin for Wembley bout|
|From salvation to the record books - Fisher revels in European Tour´s first 59|
|Lahm says Germany best for Euro 2024 as UEFA publishes report|
|Lopetegui backs Modric over Ronaldo for individual prizes|
|Goretzka to start against former club Schalke, confirms Kovac|
|Fisher shoots first 59 in European Tour history|
|Simeone defends Ronaldo after controversial Champions League red|
|Slater sees Storm into Grand Final, awaits fate over ´shoulder charge´|
|Hogg to miss Scotland´s November Tests following ankle surgery|
|Osaka through as Azarenka and Garcia crash out|
|Burgess weighing up legal options after being cleared in Rabbitohs investigation|
|Uncapped Cottrell and Gordon named in Wallabies squad|
|He´s done fantastic work - Mourinho hails Wolves boss Nuno|
|Joshua v Povetkin: No need for fireworks on AJ´s Wembley return|
|Six titles, 204 goals - Aguero´s incredible City career in Opta stats|
|Read to miss Argentina clash, Ioane brothers sign new deals|
|Pedro allays injury fears after Europa League clash|