LONDON -- Dallas Cowboys quarterback Tony Romo went through a full practice Friday and is listed as probable for Sunday's game against the Jacksonville Jaguars, making it a virtual certainty he will start.

Romo, who has two transverse process fractures in his back, went through a limited practice Thursday. He said he felt better as the practice went on, but there was some soreness.

As he stepped on to the team bus after Friday's practice, Romo gave a quick thumbs up when asked if everything went well.

Cowboys owner and general manager Jerry Jones said Thursday he expected Romo to play against the Jaguars after sitting out last week's game against the Arizona Cardinals.

Romo did not have an issue with the plane ride to London on Monday night, and he took part in every walk-through session during the week, while sitting out Wednesday's practice. Romo has not practiced on a Wednesday since Week 2 as he looked to strengthen and rest his surgically repaired back.

"He looked pretty comfortable to me," Cowboys coach Jason Garrett, who spoke before Friday's practice, said of Thursday's session. "Clearly, he wanted to get the blood flowing through his body and get his movement back both in the pocket and also throwing the football, and he had a pretty good day yesterday."

Garrett, however, still hasn't made a decision on who will start Sunday.

"We'll take today, we'll see how he feels after yesterday's work," Garrett said, "and hopefully he can practice the way we need him to practice today and just take it right up until game time."

Defensive tackle Tyrone Crawford was ruled out. He did some light jogging off to the side Friday and said he felt good, but did not think he would be able to play because of a sprained medial collateral ligament.

Starting linebacker Rolando McClain did not practice this week because of knee and groin injuries but is listed as questionable. Defensive tackle Nick Hayden returned to practice on a limited basis Friday and is also listed as questionable.

Offensive linemen Doug Free and Ronald Leary practiced fully for the second straight day and are probable. Free has missed the last three games with a foot injury. Leary did not play last week because of a groin strain. Linebacker Bruce Carter, safety Barry Church, defensive end Jack Crawford, tight end James Hanna, tackle Jermey Parnell and Anthony Spencer are also probable.

The Associated Press contributed to this report.