Cleveland Browns offensive coordinator John DeFilippo has hailed the focus of quarterback Johnny Manziel.
The 22-year-old spent a spell in rehab earlier this year, but DeFlilippo has warned that he looks in good shape ahead of the new season.
He told reporters: "Johnny's been great. He's been fantastic. What he wants to talk about, before he stepped foot back in this building, is his business. All I know is Johnny the football player, and he's been awesome."
Manziel started only twice last season and failed to throw a touchdown.
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