Memphis Grizzlies coach Taylor Jenkins insisted only the finest of margins separate his team from the NBA's best after a 120-113 loss to the Utah Jazz in Game 4 of their playoff series.

Donovan Mitchell had 30 points and eight assists to lead the top-seeded Jazz to the brink of the conference semi-finals.

The Jazz survived another spirited effort by the eighth seeds to take a 3-1 series lead and can advance with a win in Game 5 on Wednesday. 

But Jenkins believes the Grizzlies are still in with a shot.

"We are right there," Jenkins said. "We are literally going toe-to-toe with the best team in the NBA.

"We are doing a lot of things great. We gotta find ways to do more. 

"This season isn't over."

Ja Morant scored 23 points and had 12 assists but made just one of seven three-pointers for Memphis, who were 10 of 35 from distance as a team. 

Jenkins acknowledged that, while the Grizzlies fell short in some areas, they were close to perfection.

"You are never going to play a perfect game," he said. "We have to play a perfect game against this team, and we are so close.

"Two games in a row it comes down to the last couple of minutes. I would not say I am frustrated. I am so encouraged.

"All we gotta do is go and win one game on the road. We have won there before.

"Our mentality all season long is to continue to fight, be the most competitive team, the most together team.

"I have the utmost faith in this group that when we go out and get on a plane tomorrow, we will be ready for Game 5."