Tony Finau shook off two early bogeys to post a three-under-par 69 on Friday and maintain a share of the lead alongside Ryan Palmer after the second round of the U.S. PGA Tour Memorial. 

As reigning Masters champion Tiger Woods struggled with back issues on his way to a four-over-par 76 -- making the halfway cut on the number -- overnight leader Finau and Palmer, who started the day one back, steered a steady course. 

Woods, playing his first PGA Tour event since February after a tour shutdown in March over the coronavirus pandemic, said his back was bothering him even as he warmed up, had five bogeys and a double-bogey with just three birdies. 

A solid finish, with two birdies and a par save in his final three holes, didn't do much to improve his outlook. 

"Not very good," Woods said. "I three-putted two holes early, and whatever kind of momentum I was going to create, I stifled that early and fought it the rest of the day," the 44-year-old said. 

"Aging is not fun," he said. "Early on in my career, I thought it was fantastic because I was getting better and better and better. And now I'm just trying to hold on."

The five-time Memorial winner has never missed a cut in 17 prior appearances in the tournament, and his next victory would set the PGA Tour career record of 83.  

In the meantime, reigning U.S. Open champion Gary Woodland fired a 70 and was two adrift, tied on 138 with Chez Reavie (67) and Luke List (68). 

World No.2 Spain's Jon Rahm had six birdies in his five-under effort as he bids to overtake Rory McIlroy atop the world rankings this week. 

(With input from agencies)