Updated

SAN ANTONIO (AP) -- Kawhi Leonard had 34 points, eight assists and seven rebounds, and the San Antonio Spurs overcame the loss of Tony Parker to beat the Houston Rockets 121-96 on Wednesday night and even the Western Conference semifinals at one game apiece.

Parker did not return after hurting his left leg with 8:43 remaining in the game. Spurs officials said Parker will undergo an MRI on Thursday morning and update his status after, but Spurs coach Gregg Popovich said following that game that "it's not good."

Parker fell to the court after missing an uncontested short jumper. He grabbed his left knee immediately upon landing and remained on the court for a few minutes. He attempted to walk, but had to be carried by teammates to the back. Spurs owner Julianna Hawn Holt rose from her courtside seat to point and scream at an official after Parker exited the game.

Parker finished with 18 points and four assists in 26 minutes.

Houston point guard James Harden was limited to 13 points on 3-for-17 shooting.

The Rockets shot 11 for 34 on 3-pointers after going 22 for 50 in their 126-99 victory in Game 1 on Monday night. They host Game 3 on Friday.

The start was as frenetic as Game 1, but the Spurs kept pace this time. The teams shot a combined 15 for 25 in the opening six minutes, including 5 for 9 on 3-pointers.

Popovich started Pau Gasol in place of David Lee to give the Spurs another outside shooter in the starting lineup and it paid off early. San Antonio shot 62 percent in the opening quarter.

The Spurs finished at 54 percent.

LaMarcus Aldridge had 15 points after being limited to four in the opener, and Danny Green added 12.

Leonard tied his postseason high with 20 points in the first half as the Spurs opened up a 65-55 lead entering the third quarter.

Harden led a charge in the second half, but not with his offense. He swiped the ball away, leapt out of bounds and tossed it backward to save it and then stripped Green on the following possession to set a strong defensive tone. The Rockets would force five turnovers in the third quarter to cut their deficit to 88-83 entering the fourth.

Spurs reserve Jonathon Simmons provided a lift, scoring consecutive baskets at the close of the third quarter and then opening the fourth by diving into the front row of seats to save a loose ball that led to Manu Ginobili's layup. On the ensuing possession, Simmons completed a three-point play off a dunk.

TIP-INS

Rockets: Houston had scored 100 points in every playoff game this season. . Harden entered Wednesday averaging 31.0 points, 8.2 assists and 5.5 rebounds this postseason. Hall of Famer Michael Jordan is the only player to average 31 points, 8.0 assists and 5.0 rebounds in a single postseason, doing so in 1991. . The league fined Nene $15,000 for "escalating an altercation" after grabbing Dewayne Dedmon by the throat while the Spurs center was jawing with Harden. Nene was ejected from the game for the action. . Houston is 3-2 when trailing after the third quarter this postseason.

Spurs: Parker joined longtime teammate Tim Duncan as the only players born outside the United States to score 4,000 points in the postseason. Parker, Jordan, Kobe Bryant and LeBron James are also the only players in league history with at least 4,000 points and 1,000 assists. .. Parker and Ginobili won their 131st postseason game as teammates, matching the league record held by Parker and Duncan. . Leonard has scored in double figures in 28 straight games, the longest streak since Parker had 63 straight from 2006-12. . Parker has scored 15-plus points six times this postseason after achieving that feat just 16 times in 63 regular-season games.