Scottie Scheffler and his heavily pregnant wife Meredith face another anxious Sunday as he storms into the lead at the RBC Heritage in South Carolina... after vowing to walk off at the Masters if she went into labor

Scottie Scheffler and his heavily pregnant wife Meredith will face another anxious day on Sunday after he moved into contention to win again on the PGA Tour. 

A week on from the world No. 1's second victory at the Masters in three years, Scheffler could again be forced to rush back to Texas for the birth of his first child.

Scheffler admitted while dominating at Augusta National last week that he would abandon the tournament if he was told Meredith had gone into labor. 

After rushing back to Texas after winning the Masters, he once again teed it up in South Carolina at the RBC Heritage this week.

And he continued his remarkable form on Saturday with a sensational eight-under par round of 63 to currently lead by one shot. 

The 27-year-old shot five birdies on the front nine and then another two on the back nine. 

Scheffler is once again being trailed by Masters rivals Collin Morikawa and Ludvig Aberg, who battled for the Green Jacket but fell away during the final round last week.

Morikawa is a shot back after going four-under on Saturday, Tom Hoge is two off the lead while Aberg and four others are currently three off the lead. 

Scheffler was almost brought to tears inside Butler Cabin on Sunday as he discussed his victory the imminent arrival of his first child. 

'I definitely will enjoy the birth of my first child, and my priorities will change very soon, so golf will be fourth in line, but I still love competing,' he said.

'I don't plan on taking my eye off the ball any time soon.'

He added: 'I wish I could soak this in a little bit more, but all I can think about is getting home. You're about to make me cry here in Butler Cabin. It's a very, very special time for both of us.

'I can't put into words what it means to win this tournament again and really can't put into words what it's going to be like to be a father for the first time.

'Looking forward to getting home and celebrating with Meredith, it's been a long week without her.'

Scheffler married Meredith, his high-school sweetheart, in 2020, with the couple expecting their first child any day now.

On Saturday, he revealed that he was 'ready to go at a moment's notice' if Meredith were to go into labor or have any complications with her pregnancy.

He even found away to stay connected to Meredith despite Augusta's no phones policy.

'We have somebody here that has access to their cell phone,' he said on Saturday. 'We have open lines of communication, and she can get hold of me if she needs to.

'And yes, I'll be available to go home whenever I need to.'

Scheffler hopped on a private jet to head back home to his native Texas but was later spotted out at a dive bar in Dallas celebrating his victory. 

Now, it's not clear if Scottie did make a quick stop at home before heading out to celebrate, but there are a number of pictures of him from this bar that made the rounds on social media.

That included snaps of him wearing the iconic Green Jacket while standing next to a number of people at Inwood Tavern.