MIAMI • Tiger Woods displayed progress again on Monday in his latest back surgery comeback bid, after the 14-time Major champion posted another video of himself on Twitter and Instagram hitting a "stinger" shot with a long iron.

Former world No. 1 Woods, who posted a video of himself hitting a driver last week, has only recently been approved by doctors to resume full golf activities after a six-month recovery from lower back fusion surgery - his fourth back surgery - in April.

"Return of the Stinger," Woods tweeted on Monday afternoon.

Woods, 41, used the "stinger" shot to great advantage during his heyday more than a decade ago, but has not played since February, when he withdrew from the Dubai Desert Classic and he has not won a Major since the 2008 US Open.

Woods posted the message "Making Progress" with his driver video after an Oct 7 post titled "Smooth Iron Shots".

Last December, Woods made a short-lived comeback at the Hero World Challenge, a small-field invitational event in the Bahamas to benefit his charity foundation, and if his game and health allow, he could still enter this December's edition of the event, with two open spots remaining in the field.

Woods served as the US team assistant captain at the Presidents Cup last month and said then he was uncertain if he would ever return to competitive golf.

Fellow American golfers Justin Thomas and Rickie Fowler teased Woods in the comments section on Instagram, with Thomas asking "was the slow-mo necessary through the club twirl TW?" and Fowler saying that "it looks like he toed it a bit?"

AGENCE FRANCE-PRESSE