PFF Analysts
John Kosko
NFL Contributor • View all analysts
Recent Articles
Every top 2024 NFL Draft prospect has a chance of not panning out, regardless of the pre-draft hype.
Thu, 25 Apr 24 11:15:10 +0000
John Kosko breaks down the most improved position groups in the NFL after the first week of free agency.
Mon, 18 Mar 24 09:00:42 +0000
The Chicago Bears' Jaylon Johnson led cornerbacks in PFF grade in 2023, followed by the Dallas Cowboys' DaRon Bland.
Fri, 01 Mar 24 11:00:20 +0000
We highlight seven top 2024 NFL Draft prospects who might struggle early on in the NFL or even never pan out.
Thu, 22 Feb 24 10:45:00 +0000
The oft-scrutinized Brock Purdy has the San Francisco 49ers on the cusp of a Super Bowl 58 victory.
Sat, 10 Feb 24 14:53:03 +0000
The 2023 regular season is in the books. Here were the top cornerbacks from Week 1 to Week 18, starting with the one and only Sauce Gardner.
Thu, 11 Jan 24 18:57:00 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Thu, 04 Jan 24 18:40:01 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Thu, 28 Dec 23 15:29:37 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Wed, 20 Dec 23 17:23:44 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Thu, 14 Dec 23 11:15:07 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Thu, 07 Dec 23 17:00:03 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Thu, 30 Nov 23 19:29:46 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Thu, 23 Nov 23 13:55:13 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Thu, 16 Nov 23 17:31:13 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Fri, 10 Nov 23 15:41:57 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Thu, 02 Nov 23 17:00:21 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Thu, 26 Oct 23 18:45:01 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Thu, 19 Oct 23 14:53:22 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Thu, 12 Oct 23 21:42:30 +0000
Each week, after every NFL game is graded and reviewed, PFF will check in on the top cornerbacks of the 2023 season.
Thu, 05 Oct 23 20:55:45 +0000Bio
John joined PFF in July 2014, and serves as an NFL Analyst. John is also a former Kansas Football safety. He obtained a Bachelor’s degree in Liberal Arts and Sciences Studies.
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