Ronaldo's performance came after a turbulent week with his club, after he recently stormed off after being substituted to help rest his knee injury.
Santos told RTP: 'He's fine.
"His match put an end to the doubts about his physical condition, for those who had doubts".
Bobby Orr defended Don Cherry
The legendary blue-liner came to the 85-year-old's defense Thursday. So does the Coach's Corner audience, said Orr. It's unfortunate what happened.
No sooner had the match finished, Ronaldo's sister Katia Aveiro chose to have her say on matters in more cryptic fashion, posting an image of her brother in his Portugal kit onto social media.
Ronaldo, whose hat-trick was the 55th of his career and ninth for Portugal, has 98 goals and could become only the second player to score a century for his country after Iran's Ali Daei.
Portugal can seal second place in Group B if they beat Luxembourg in their final qualifier on Sunday.
Andrew Sparrow's election briefing: Labour's broadband pledge dominates
He said earlier on Thursday that this would not be allowed to take place in the first two years of a Labour government. He has promised to roll out full-fiber broadband to all homes by 2025.
Iranian great Ali Daei holds the all-time record with 109 global strikes.
Ronaldo, who scored a hat-trick against Lithuania, said Fernando Santos's men are one step closer to qualifying for Euro 2020.
The match was full of highlights both on and off the ball but none was cuter than the moment the 34-year old decided to make a pitch invader's dream come true.
Ronaldo missed a golden chance for his fourth goal when his shot from near the penalty spot sailed over the crossbar in the 68th.
Current: Oil inventories +2.2 million barrels (now 449 million) - production rising!
Brent crude, the worldwide benchmark, was down 16 cents, a barrel by 0259 GMT, after gaining 0.9% within the earlier session. US oil output is expected to rise an additional million bpd to 13.29 million bpd in 2020, the agency said.