PHOENIX, April 27 (Ticker) -- Amare Stoudemire and Quentin Richardson were not about to let the Memphis Grizzlies steal home-court advantage.

Stoudemire scored a playoff career-high 34 points and Richardson came up with a huge defensive play and rebound in the final minute as the Phoenix Suns posted a 108-103 victory over the Grizzlies and took a 2-0 lead in their Western Conference first-round series.

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After sinking 15 3-pointers and amassing 25 fast-break points in the series opener, the top-seeded Suns were contained in both of those categories and had to rally down the stretch to keep the Grizzlies winless all-time in the postseason.

Pau Gasol scored inside with 4:18 remaining, giving the Grizzlies a 99-94 lead. However, Richardson answered 14 seconds later with a 3-pointer to trigger a 14-4 surge that closed the contest.

Shawn Marion made consecutive jumpers to give the Suns the lead and Stoudemire, the Suns' All-Star center, sank two free throws with 2:04 left for a 103-99 advantage.

James Posey split two free throws with 1:46 left, pulling the Grizzlies within 103-100. With a chance to get closer, Memphis went to the 7-foot Gasol on the inside and the 6-6 Richardson came over on the weak side and blocked his shot.

"He was going baseline a lot down the stretch so I tried to smell it out," Richardson said. "I thought he was going to go that way and he did."

"If we score there things might have been different but he came out of nowhere," Gasol said. "I didn't see him coming. I could have gone up a little stronger and dunked it."

On the Suns' ensuing possession, Marion threw up an airball but Richardson grabbed the rebound and was fouled with 15 seconds left. He split two free throws for a four-point lead.

Mike Miller answered with a 3-pointer - his only basket of the game and Memphis' only hoop in the last 4:18 - before Steve Nash made two free throws with nine seconds left. After Miller missed a shot from the arc, Richardson sealed things with two foul shots with five seconds to go.

Limited to just nine points in the series opener, Stoudemire made 8-of-16 shots and went 18-of-22 at the free-throw line. He attempted three more free throws than the entire Grizzlies' team.

"I had to attack," said Stoudemire, who grabbed 10 rebounds. "In Game One, I tried to attack a little too much so I tried to mix it up with some 'Js.' That pretty much opened up the court there for a lot more. I was using my quickness. Using my pump fake, there seemed like there was a little more space out there and a little more room to operate."

Led by Stoudemire, the Suns went 31-of-40 at the line while the Grizzlies went just 11-of-19.

"I didn't realize the 40-19 discrepancy at the free-throw line," Grizzlies coach Mike Fratello said. "It is pretty tough when the other team outscores you by 20 at the foul line. Some people saw the game differently than I did."

Marion had 22 points and 13 rebounds and Nash handed out 15 assists for the Suns, who shot 46 percent (36-of-78) and held a 49-45 rebounding advantage. Phoenix made just five 3-pointers and had just 15 fast-break points.

"I am tired of talking about this. Everyone is saying we can't run, we can't play defense," Marion said. "We're up 2-0 now, keep talking. We're up 2-0 now and we're showing what we can do."

Gasol had 28 points and 16 rebounds and Jason Williams scored 21 points for the Grizzlies, who fell to 0-6 in the postseason. Memphis stayed in the game behind its bench, which outscored the Suns' reserves, 30-5.

"I was trying to be more aggressive, I know I have to play at this kind of level," Gasol said. "The whole team needs me to play with this kind of aggressiveness."

The Grizzlies host Games Three and Four on Friday and Sunday.

Stoudemire had consecutive baskets to start the third quarter, giving the Suns their biggest lead, 64-54.

But Gasol, who drew the wrath of Fratello earlier in the quarter, scored eight points in a 17-7 run that pulled the Grizzlies into a tie at the 4:37 mark. Williams scored the final five points of the burst with a driving layup and 3-pointer.

Williams, who made his first six shots, scored a playoff career-high 21 points but did all of his scoring in the first and third quarters.

Nash made a pull-up jumper and Marion, playing with a sprained right wrist he suffered in the series opener courtesy of a hard foul by Shane Battier, sank a free throw and jumper to close the quarter and give the Suns an 82-77 lead.

Joe Johnson added 20 points and Richardson 15 for the Suns, who have a 2-0 series lead for the first time since the 1995 conference semifinals against Houston. Phoenix eventually lost that series in seven games.

Sparked by Williams' hot start, the Grizzlies led by as many as seven points in the first quarter. But the Suns got their high-powered offense going in the second quarter and used a 19-8 burst over the final 4:51 of the half for a 60-54 lead.

Brian Cardinal added 13 points off the bench for the Grizzlies, who shot 46 percent (43-of-94).