RENTON, Wash. -- Rookie Germain Ifedi was admittedly a little off when he finally made his regular-season debut on the Seattle Seahawks offensive line three weeks later than originally planned.It wasnt the speed of the game or the scheme of the opponent. It was simply being back on the field for a full game for the first time as a pro.I wouldnt say conditioning but just playing a full game on this level, I hadnt done that yet. Whether Week 1 or Week 4, I was going to have to knock off that rust of being able to play a whole NFL football game, Ifedi said Wednesday.Ifedis return at right guard during Seattles Week 4 victory over the New York Jets finally put the Seahawks offensive line fully in place.Ifedi missed the first three weeks of the regular season after suffering a sprained ankle in practice just days before the season opener against Miami. The injury led to significant changes on the offensive line with JMarcus Webb -- having not played guard all training camp -- stepping into Ifedis spot for the first three weeks.But the job was Ifedis from the start and the Seahawks hope his return in Week 4 is just the start of improved play along the entire offensive line.Theres a lot of room for improvement there for Germain. Hes just one game old in the regular season and hes been off for quite a while, too. He was rusty and he was behind a little bit, he was just a little bit shoddy with some stuff, it just had to happen that way, coach Pete Carroll said. He should improve a tremendous amount, and I think as he improves, hell affect whats going on with Garry (Gilliam) and whats going on with (Justin) Britt. We should see improvement in a number of areas. Were really fired up about him, we think hes going to be a dominant player. Hes got to have it, hes got a growth cycle that hes got to go through to get caught up.Where the Seahawks are hoping Ifedi can provide a boost is in the run game. While the pass protection has been solid for quarterback Russell Wilson the past two weeks, the Seahawks have struggled to get the run game going to their standards for most of the season.Seattle has just one 100-yard rushing game -- Christine Michaels 106 yards in Week 3 vs. San Francisco -- and go into t