by Curtis Crabtree
KJR reporter
Twitter: @Curtis_Crabtree

RENTON - The Seattle Seahawks continue to tweak and adjust with personnel groupings in their defensive front seven through the first four practices of training camp.

DE Cliff Avril sat out practice with an undisclosed injury and LB O'Brien Schofield was not yet able to practice with the team after being acquired via waivers on Saturday.

It allowed for some continued shuffling along the defensive line. DE Benson Mayowa worked with the first-team defense at times. DT Michael Bennett worked both outside at end and inside at tackle. DE Bruce Irvin contined to split time between a LEO end spot and strongside linebacker position.

DT Jordan Hill continued to see time with the first-team defense as well working alongside DT Brandon Mebane.

FB Spencer Ware took a couple shots from linebackers on passes to the flat. Ware got popped by LB K.J. Wright and LB John Lotulelei on two seperate occasions.

WR Chris Harper had his best day of training camp so far with a handful of grabs. Twice Harper caught passes from QB Brady Quinn in front of CB Will Blackmon and CB Ron Parker.

WR Stephen Williams continues to show up in practice as well making several catches and seems to be right in the thick of the battle for a spot at the back end of the roster.

T Michael Bowie sat out practice with an injury which allowed T Alvin Bailey to work with the second-team offensive line. Bailey worked at left tackle and T Michael Person moved to the right side with the second group. G John Moffitt was back working with the first-team at right guard Sunday along with G Paul McQuistan on the left side.

S Winston Guy also made a few nice plays coming up in pass coverage.

The players have an off-day Monday before returning to practice Tuesday.

--Injury Report

Seven players remained on the PUP and NFI lists for Saturday's practice. WR Percy Harvin (hip), DE Chris Clemons (knee), DT Greg Scruggs (knee), CB Tharold Simon (foot), TE Zach Miller (foot) and RB Robert Turbin (foot) remain on the physically unable to perform list. LB Korey Toomer (knee) remains on the non-football injury list.

In addition, DE Cliff Avril and T Michael Bowie sat out with undisclosed injuries. Avril has missed time throughout the offseason with a foot issue and Sunday's day off could be related to that. LB Heath Farwell (back) and DT Jesse Williams (knee) also sat out practice again Sunday.

FB Michael Robinson was back at practice Sunday after missing the previous two days with a sore ankle.