Jacksonville Jaguars head coach Gus Bradley said wide receiver Marqise Lee's lengthy injury history has put the team in a position where they're not able to count on the second-year player at this point.

Lee, who battled a hamstring strain that sidelined him almost all of training camp, along with the entire preseason and the first game of the regular season, left the Jaguars' blowout loss to the Patriots on Sunday with hamstring soreness in the second quarter.

"I think that reliability comes over consistency, being able to count on him,'' Bradley said, per Vito Stellino of the Florida Times-Union. "So is he reliable right now that we can count on him week in and week out? No, he hasn't proven that. That's what he's got to prove to us and these little injuries that are coming up that are unfortunate. It's not something he wants. We've just got to try to get over the hump on these things and hopefully, good things will come his way.''

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A second-round pick in 2014, Lee said he agreed with his coach's assessment.

"I'm not [reliable yet],'' Lee said. "Being out their partially is not being reliable.''

As a rookie last year, Lee missed three games with another hamstring injury. He also missed the team's OTAs and minicamp this year with a knee injury.

Despite the setbacks, the 23-year-old said he's maintaining a positive attitude.

"It's not frustrating at all,'' Lee said. "I don't want to come in and be negative the whole day. I'm not worried at all. I feel like once I do get over this little issue, I'm going to be this fine.''

Lee's status for Sunday's game against the Indianapolis Colts will be determined later in the week.