NFL: Indianapolis Colts at Jacksonville Jaguars
Douglas DeFelice / USA TODAY Sports

INDIANAPOLIS -- After two days of joint practices, the Colts and Panthers basically agreed to not play many of their starters in their preseason opener on Sunday in Indianapolis.

But opportunities don't go away when starters sit, they just go to someone else. And both teams had receivers who made impressions that will certainly find the Fantasy radar.

Panthers rookie receiver Terrace Marshall Jr. caught 3 of 5 targets for 88 yards while playing deep into the first half, and Colts third-year wideout Parris Campbell hauled in his only target over 10 snaps, a 37-yard fade placed perfectly by backup quarterback Jacob Eason.

Expect both to become late-round finds as appealing bench receivers with obvious upside as the season rolls on.

Marshall quickly turned heads on Sunday when he nabbed a P.J. Walker pass on a scramble drill and turned it into a 60-yard play with about 40 yards coming after the catch. 

"It was just instinct," Marshall said about moving away from Walker on the play instead of curling back to be an easier target. "It was a scramble drill. ... I just turned upfield, saw open grass, he threw it to me and I just extended the play."

Everyone was a fan of the play, except coach Matt Rhule.

"We need him to put that ball away on that long one," Rhule said.

Outside of that harmless fumble, Marshall showed all of the great traits that made him a second-round selection. He lined up in the slot and out wide, got separation on most of his routes including a 20-yard gainer across the field.

The crazy thing is, he probably should have had a better day than he did: a target on a back-shoulder throw came late, and a target on a crossing route in the end zone was thrown low.

"We've just got to find ways to get the ball in his hands," said Walker, who on Sunday tried to find ways to get the ball in his hands.

What makes Marshall especially intriguing is his size. While D.J. Moore is just three inches shorter and Robby Anderson is listed as 15 pounds lighter, Marshall looks more like a power forward. His girth and catch radius give the Panthers another fierce option who lined up in the slot last year at LSU (and scored eight touchdowns from there), and out wide the year before (and scored 10 touchdowns from there). It doesn't hurt that Marshall worked with current Panthers playcaller Joe Brady at LSU in 2019 either.

His path to becoming a Fantasy starter this season is blocked by Moore and Anderson figuring to see plenty of targets and playing time. SharpFootballStats.com had the Panthers using three wide receivers on 57% of their plays last year, slightly below league average. If Carolina keeps close to that, Marshall may not quite have the glut of targets he'd need to help your team. However, it's that uncoachable size that can make him a legit red-zone dominator, particularly after a year where the Panthers' receivers totaled six red-zone touchdowns -- and just two from inside of 10 yards. The touchdown upside forces Marshall into the late-round range in all leagues, and his long-term potential in Dynasty and keeper formats includes him eventually becoming the Panthers' top target-getter, maybe as soon as 2023.

Campbell's story is very different. The former second-round pick has only played in nine games out of a possible 32 thanks to some freak injuries. He hasn't done much of note in those nine games -- one career touchdown and 24 receptions -- but with a fresh bill of health and a secured role in the Indianapolis offense, Campbell will have a shot to contribute.

"What I had today was necessary, helped me get my feet wet," said Campbell. "Three weeks (into training camp) I'm feeling great. No issues with the knee so I feel good."

His 37-yard grab on Sunday was outstanding as Campbell had a step on the defensive back covering him and reeled in a perfect fade pass from Jacob Eason for a 37-yard gain. It was his only target, but Campbell was finding at least a yard of separation from Panthers defenders on pretty much all of his routes. His burst off the snap was okay, but the acceleration and speed he displayed were on par with what he showed at Ohio State.

"Parris making that play, it was good for him," coach Frank Reich commented post-game.

At this point, it's a rather large "if," but if he can stay healthy, Campbell will make a handful of those longer plays but specialize in shorter routes as most slot receivers do. And once Carson Wentz comes back, assume Campbell to be a pretty useful option. In Wentz' past four seasons, slot receivers have accounted for at least 30.6% of all his targets

YEAR% att to slotcomp%TDs
202030.60%68.70%4
201934.40%68.40%10
201833.70%65.20%1
201730.70%68.90%16

Campbell, like Marshall, offers tremendous late-round upside as an easy target vacuum for the Colts to build into gameplans. His deep speed will be a factor, especially in games Hilton misses. And unlike the Panthers, Indy played with three receivers on 69% of their plays.

No doubt, Campbell has a clearer path to targets than Marshall, just not quite as clear of a path to touchdowns. But both present low-cost opportunities for Fantasy managers who crave late-round upside.  

So which sleepers, breakouts and busts should you target and fade? And which QB shocks the NFL with a top-five performance? Visit SportsLine now to get Fantasy cheat sheets for every single position, all from the model that called Josh Allen's huge season, and find out.