Tiger Woods battled back spasms for the second consecutive tournament. (AP Photo/Lynne Sladky)

The back spasms that have plagued Tiger Woods in recent weeks resurfaced Sunday in the final round of the WGC-Cadillac Championship.

Woods, who withdrew from the Honda Classic last week with a lower back injury, shot a 6-over-par 78 to finish nine strokes behind winner Patrick Reed.

It was his first birdie-less final round and worst career round at Doral.

After shooting a low round of the week 66 on Saturday, Woods entered Sunday just three strokes out of the lead in a tie for fourth but dropped to a tie for 25th by the end of the tournament.

The 38-year-old said an awkward stance in a fairway bunker on the sixth hole sent his back into spasms that were similar to last week’s.

“Well, it’s tough. I mean, it was just one thing that set it off,” said Woods, referring to the shot on the sixth hole (via ESPN). “As I say, I had a quick turnaround from last week. Normally things like this, you shut it down for a while and then get back up and get the strength and everything developed around it.”

Woods is off to the worst start of his career. In addition to his withdrawal from last week’s Honda Classic, he finished with a tie for 80th at the Farmers Insurance Open and a tie for 41st at the Dubai Desert Classic.

He is scheduled to play next week at the Arnold Palmer Invitational, where he has won eight times.

Asked about his plans going forward, Woods said (via ESPN): “I don’t know, just let me get through this day, get some treatment and we’ll assess it as time goes on.”