Dante Pettis had a very promising rookie season for the San Francisco 49ers in Kyle Shanahan's offense.

The 44th overall pick of last year's draft, Pettis showed major flashes. In 12 games and seven starts, he turned 27 receptions into 467 yards and five touchdowns.

He showed major big-play ability, averaging a whopping 17.3 yards per reception. Notably, he did it while playing with C.J. Beathard and Nick Mullens, after Jimmy Garoppolo went down with his ACL tear.

Garoppolo is back now, so hopes are high for Pettis entering his sophomore campaign.

Count Shanahan as among those expecting big things in 2019.

“When I saw him the first week he got back to see the size that he had put on, not that he’s going to be real noticeably different to everyone, but he worked while he was gone,” Shanahan said, per Jennifer Lee Chan of NBC Sports.com. “He worked while he was away. He tried to get bigger.”

“He worked more at his routes and he came here with the idea of ‘Hey, I’m not just coming here to get better back in shape, I’m coming here to get better,’” the third-year coach explained.

Garoppolo is excited to be working about him again, and interestingly noted that Pettis runs his routes in a very unique way.

“It’s just different. It’s hard to describe unless you’re seeing it, but you’re trying to throw it while he’s coming out of a break, but he comes out of break differently than most guys. It’s so hard on the defense that you really just know he’s going to get open, you just don’t want to miss him,” the quarterback explained.

“Being able to get on the same page with him, I think these last few weeks have been very important,” he continued.

Be ready for a potential breakout season from the Washington product.