What happened: Tank Dell (knee), David Montgomery (groin) and Jalen Pitre (shoulder) did not travel to London and are out Sunday against Jacksonville. Henry To'Oto'O is listed with a shoulder injury and Wade Woodaz with a thumb injury.

Why it matters: With three players remaining in Houston to rehab, depth for Sunday in London turns on the two questionable linebackers. The Jacksonville matchup makes Friday designations the key availability guide.

What to watch: Kickoff Sunday against Jacksonville will settle whether To'Oto'O and Woodaz are available.