The San Antonio Spurs are making it look easy as they cruise toward the Western Conference finals. The Spurs will try to polish off a four-game sweep when they visit the Portland Trail Blazers for Game 4 of the semifinals on Monday. The Trail Blazers thought the change of scenery could change the complexion of the series but San Antonio was just as impressive on the road and ended up cruising to a 118-103 victory in Game 3.No NBA team has ever come back from a 3-0 deficit in a best-of-seven series and Portland is just hoping for a better effort. "We're going to come out and have a great effort on Monday night," Trail Blazers coach Terry Stotts told reporters. "That's the most important thing. We're going to show our character, we're going to show our pride and we're going to come out and play our (rear ends) off on Monday." The Spurs recognize that getting the final win won't be easy. "The close-out is always the hardest game," San Antonio guard Tony Parker said.TV: 10:30 p.m. ET, TNTABOUT THE SPURS: San Antonio is the fourth team in NBA history to win four straight postseason games by 15 or more points and has rarely looked vulnerable against the Trail Blazers. The Spurs held a 60-40 lead at the half in Game 3 - the third straight time they held at least a 19-point cushion at the break - and controlled the game in the second half. Parker scored 20 of his 29 points in the first half on Saturday and is averaging 26 points in the series. "(Parker) got us out of the gates," forward Tim Duncan told reporters. "He continues to shoot the ball really well. He's getting to his spots. He's making great decisions for our offense."ABOUT THE TRAIL BLAZERS: Portland has yet to figure out a way to slow the San Antonio offense in the first half and is struggling to get into a rhythm early with its own offense. ""It's frustrating," Stotts told reporters. "You've got to play through the frustration. It's part of the game. It's part of the playoffs. … But yeah, it's frustrating to get down 20 in the first half. You look at the scoreboard and it's a hole." All-Stars LaMarcus Aldridge (38 percent) and Damian Lillard (37.5) are both struggling from the field in the series while Mo Williams (groin) has been a non-factor off the bench and could miss his second straight game on Monday.BUZZER BEATERS1. The Spurs bench is outscoring the Blazers' reserves 140-43 in the series.2. Lillard is just 1-of-13 from beyond the arc in the series after hitting 23-of-47 in the first round.3. Portland has led for a total of 33 seconds in the three games.PREDICTION: Spurs 116, Trail Blazers 110