Less than four minutes remained when the score seesawed and the Grizzlies’ goal of using the start of a four-game road trip to patch holes in their game remained in the balance. But they ended up owning the time that mattered most. Memphis got defensive stops, clutch rebounds and even bigger baskets from power forward Zach Randolph on Friday night throughout the closing moments of an 89-86 victory over the Los Angeles Lakers in Staples Center. Randolph helped improve the Grizzlies’ record to 4-5 with 28 points and 11 rebounds. The Griz continue their longest road trip of the season Sunday against the Sacramento Kings before facing the Los Angeles Clippers on Monday and the Golden State Warriors on Wednesday. Randolph’s running hook put the Griz ahead 87-84 with 16.4 seconds left. The Griz began the possession with 38 seconds remaining after Randolph captured an offensive rebound. Lakers point guard Steve Blake attempted to tie the score with a 3-pointer with 11 seconds remaining. But his shot was off, and Griz guard Tony Allen was there for the rebound. Randolph was then fouled, and his two free throws essentially ended the Grizzlies’ two-game losing streak.