OAKLAND, Calif. — Steve Kerr gave his Golden State players a much-needed mental day off with time to rest their weary bodies, and he got back to work trying to figure out how to save the season against a powerful Thunder team that shows no signs of slowing down.

Back to the basics, back to doing the little things that got the Warriors this far.

After a record 73 wins in the regular season, the Warriors are on the brink as they go into Game 5 of the Western Conference finals tonight in Oakland trailing the Thunder 3-1 after a second straight lopsided loss in Oklahoma City.

No denying it’s a daunting task for the defending champs — especially given that MVP Stephen Curry is a far cry from being completely healthy.

“Well, it’s a sense of reality staring us in the face. We’re down 3-1,” Kerr said Wednesday. “Momentum can shift quickly in the playoffs. We’ve seen that the last couple years. Let’s take care of business at home, get some momentum back and we’ve got a chance.”

All season long, the Warriors have taken the best efforts from every opponent. The just haven’t shown the vulnerabilities that appeared the past two games in Oklahoma City, where Golden State lost back-to-back games for the first time during its record-setting season.

The flight home was hardly fun following Tuesday’s 118-94 defeat.

“It was not festive. It was quiet,” Kerr said.

The Warriors shot 41 percent and committed 21 turnovers that led to 18 Thunder points. Curry was 6 for 20 and missed eight of his 10 3-point attempts to score 19 points, sparking further talk that he’s far from full strength.