Nikola Jokic and the Denver Nuggets could use the kind of break everybody else is getting in the second round of the NBA playoffs.If anybody deserved some time off, it's the All-Star center who just played 65 minutes in a game.But there's no rest for the weary now. The Nuggets and Trail Blazers will be back on the court Sunday for Game 4, surely a little low on fuel after they tied an NBA record by playing four overtimes Friday night in Portland's 140-137 victory."Both teams are exhausted, so it's the same for them as it is for us," Denver coach Michael Malone said. "We will not use that as an excuse. We haven't used it all year long and we won't start using it now."The conference semifinal round is a series of starts and stops, where it's difficult for any team to build much momentum because there have been so many gaps between games.Philadelphia and Toronto, who have Game 4 of their series Sunday, play just twice in a seven-day span. In the other Eastern Conference semifinal, Milwaukee and Boston had two days off in between both Games 2 and 3, and Games 3 and 4.When Golden State and Houston played Game 3 of their series Saturday night, it was their first time back on the court since Tuesday.Then there's Denver and Portland, who barely had time to catch their breath after the Trail Blazers' victory in Friday's marathon gave them a 2-1 lead.They are playing every other day to start their series, and would only have an extra day between games if it's extended to a seventh game.So while Philadelphia's Joel Embiid has ample opportunity for treatment on his sore left knee that was such a problem when the postseason began, Portland's Enes Kanter's left shoulder has little time to heal before he'd have to get back on the court to resume tussling with Jokic."As far as the minutes, everybody's tired. Were built for what's happening right now. That's what we had to do to win the game," Portland's Damian Lillard said. "Now we've got to go do our jobs away from the floor to make sure that at 4 o'clock Sunday we're ready."At least Portland wrapped up its first-round series against Oklahoma City quickly, earning some down time after Lillard's long 3-pointer ended the series in five games. But the Nuggets had to go the distance against San Antonio, meaning they had only one day off between ending one series and starting the next.Recover quickly and win Sunday, and they've evened the series and regained home-court advantage. But if not, the No. 2 seeds are facing a 3-1 hole, which is a tough spot no matter their energy level.The 7-foot, 250-pound Jokic insists he'll be ready."They always talking about I'm not in shape. I'm in really good shape. I don't know what they're talking about," Jokic said. "When I came here I was maybe a little bit chubby, but there's really no difference in me now. I'm feeling good."A look at Sunday's games:RAPTORS AT 76ERSPhiladelphia leads 2-1. Game 4, 3:30 p.m. EDT, ABC.NEED TO KNOW: The 76ers have won the last two games after Toronto's Game 1 victory. The Raptors have not lost three straight since Nov. 12-16. Kawhi Leonard's 31.5 points per game rank second to Kevin Durant so far, but Toronto has averaged just 91 per game in the last two games.INJURY WATCH: Toronto is listing forward Pascal Siakam, one of the leading candidates for the Most Improved Player award, as doubtful because of a bruised right calf. Siakam, averaging 22.9 points, was called for a flagrant foul when he stuck his right leg in the path of Embiid during the fourth quarter of Game 3. Embiid's knee appeared to strike Siakam's calf. Siakam left the game moments later and did not return.KEEP AN EYE ON: The score at halftime. The 76ers had 64 at the break in Game 3, the fourth time they've reached 60 in the first half this postseason, and Leonard noted that was an area the Raptors had to improve.PRESSURE IS ON: Kyle Lowry. All Toronto's players need to step up more in support of Leonard but the point guard in particular acknowledged he needed to be better after a dismal 2-for-10, seven-point performance in Game 3.NUGGETS AT TRAIL BLAZERSPortland leads, 2-1. Game 4, 7 p.m. EDT, TNT.NEED TO KNOW: CJ McCollum, who scored 41 points in 60 minutes, along with Lillard (58 minutes) and Kanter (56) are the Blazers who went the longest in Game 3. So there might be an opportunity for Rodney Hood, who scored seven points in the fourth OT, or one of Portland's big men to get a little more time Sunday.INJURY WATCH: Kanter posted a photo of himself on the training table getting treatment soon after Game 3. He finished with 18 points and 15 rebounds and said afterward he didn't know if he'd be able to play in Game 4.KEEP AN EYE ON: The energy levels. Game 4 might be one of those that isn't determined by who plays better, but rather by who has the most left in the tank.PRESSURE IS ON: Jokic's supporting cast. The Serbian has three triple-doubles and ranks second among all players in both rebounds (12.6) and assists (9.1) per game in his first postseason. But the Nuggets probably can't count on him staying at that level Sunday after he played the fourth-most minutes in NBA playoff history in Game 3, falling just two short of the record, so other players have to take on some of his usual load.___AP Sports Writer Anne Peterson in Portland, Oregon contributed to this report.___More AP NBA: https://apnews.com/NBA and https://twitter.com/AP_Sports