The Spanish defender moved to the west London side in a £17m deal during the 2016 summer transfer window.
Alonso established himself as a key player for the Chelsea team under Antonio Conte after blossoming into one of the Premier League’s best wing-backs.
Indeed, the former Bolton defender thrived in a 3-4-3 formation like his fellow wing-back Victor Moses as Chelsea won the title with two games to spare.
Chelsea won the title with two games to spare after finishing seven points clear of closest rivals Tottenham Hotspur.
Conte has been linked with a move to sign cover at wing-back before the close of the transfer window despite the success of both Alonso and Moses.
The former Real Madrid defender scored either side of half-time to fire Chelsea to a 2-1 victory over Tottenham Hotspur at Wembley last weekend.
Former Manchester United defender Neville spoke in glowing terms about Chelsea wing-back Alonso.
“It shouldn’t be taken for granted what they have there,” Neville told Sky Sports.
“To find someone of that size with that experience, a player who has matured in the game since being at Bolton, who is now getting more confident.
“I remember last year, when he went off at Old Trafford, they fell apart. He has had a brilliant day.”
Chelsea were 2-0 winners against Everton in their third Premier League game of the 2017-18 season.
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