Lions notes: Matthew Stafford grades as just 20th best QB per PFF

• Pro Football Focus ranked the top quarterbacks in the league through eight weeks based on their own grading method. Detroit Lions quarterback Matthew Stafford ranks just 20th on the list with an overall grade of 75.9. Here’s what PFF had to say about him after his game against the Steelers:

When Stafford is on, he’s as fun to watch as any quarterback, and he got off to a great start against the Steelers with a number of big-time throws. From well-placed deep passes to Cover-2 shots, Stafford may have had his best game of the season from a pure throwing standpoint, but this game will be remembered for an inability to capitalize in the red zone

• How far of a field goal does Matt Prater think he can kick with his left foot? Find out on this week’s #AskALion:

• PFF made an interesting observation for all 32 teams this week. Their note on the Lions is pretty interesting:

When quarterback Matthew Stafford is moved off of his initially intended dropback, he is sacked 25 percent of the time which is fifth-most for quarterbacks who have started the whole season. However, when he gets a pass off, he has a passer rating of 105.1 in these situations, which is second-best for quarterbacks who have started the whole season.

• Earlier in the day, I argued that Ameer Abdullah should be a three-down back. Abdullah spoke to the media on Thursday and said he thinks he could be Detroit’s power back.

• The Lions worked out some potential defensive back depth on Thursday:

• Once again, the Detroit Lions will be offering standing room only tickets for their next home game against the Cleveland Browns. For more information, click here.

• In horrible news from around the NFL, it appears Texans quarterback Deshaun Watson tore his ACL at practice on Thursday. A couple Lions players tweeted their support for the rookie quarterback: