The Lakers took a 1-0 lead in the 2010 NBA finals after a 102-89 win over the Celtics. Kobe Bryant led the Lakers with 27 points, while Pau Gasol finished with 23. The Celtics were topped by Paul Pierce with 24 points. Game 2 — a must win for the Celtics? — is Sunday night.

Three Things That Went Wrong

Gasol dominates Garnett: Guess Gasol is tougher than he was in 2008. He attacked Kevin Garnett from the start on Thursday night, finishing Game 1 with 23 points, 14 rebounds and three blocks. Gasol did whatever he wanted in the post with Garnett defending (Rasheed Wallace was actually more effective on Gasol) and wasn’t afraid to get physical while guarding KG. Here’s all you need to know about Garnett’s performance in Game 1: 35 minutes, four rebounds and two FT attempts in a strangely passive performance. The defining moment of Game 1 will be Garnett unable to dunk at 91-78 with six minutes left. Again, Garnett doesn’t need to play Gasol to a push in this series but he can’t be embarrassed as he was in Game 1.

Destroyed on the Glass: Fear No. 1 for most Celtics fans heading into Game 1 was the size of the Lakers (maybe 1A, assuming that Kobe always tops the chart). And it was justified, as the Gasol/Andrew Bynum duo helped the Lakers control play underneath. At halftime LA had a 23-15 edge on the boards, a 28-18 lead in points in the paint and a 10-0 shutout in second-chance points. And the Celtics couldn’t adjust, grabbing just two rebounds in the the third quarter.

Foul Trouble Slows Down Ray: With Kobe Bryant guarding Rajon Rondo early on, it appeared that Ray Allen would be able to do some serious damage coming off screens with the soon-to-be-36-year-old Derek Fisher defending. But Allen could never get going, as he fell into early foul problems while trying to guard Bryant. A clearly frustrated Allen finished Game 1 with just 12 points on 3-of-8 shooting (and no 3-pointers).

Three Things That Went Right

Rasheed Came To Play: Wallace was terrific in the second quarter, scoring seven points while playing excellent defense vs. Gasol. You could make the case that no Celtics player matched the intensity brought by Wallace on Thursday. If Garnett struggles again in Game 2 early it’ll be interesting to see how quickly Doc Rivers goes to Wallace.

Rondo Looks Healthy: It wasn’t Rondo’s best game (13 points, six rebounds and eight assists) but he didn’t appear to be slowed down by the nagging injuries that hurt him at times vs. the Magic.

Tony Allen and Pierce Defending Kobe: Bryant was the game’s high scorer (30 points), but did most of his work against Ray Allen in Game 1. He didn’t make a shot with Pierce defending (0-for-6) and Tony Allen also had some nice moments guarding Kobe. Another Doc test for Game 2 is to see how much we’ll see Pierce on Bryant.