He remained listed in critical condition Thursday after multiple surgeries.
Hospital officials said it is hard to predict how long the congressman will be in the hospital, but that he is expected to be able to walk and hopefully run after a period of rehabilitation.
After operations over the past two days to control internal bleeding and stabilize his vital signs, Scalise's condition has improved, but he remains in the hospital's intensive care unit in critical condition, Salva said.
Mr Scalise's surgeon said he can hope to make an "excellent recovery", despite being seriously ill when he arrived at hospital after the shooting in Virginia last week.
"As far as winning and losing, I think that's far from anybody's mind right now", Flake said. The announcer's mention of Scalise, the House majority whip who was critically wounded in the attack Wednesday, brought the masses to their feet.
Republicans and Democrats joined in friendly rivalry Thursday at their annual Congressional Baseball game, all counting themselves as members of Team Scalise in honor of their grievously wounded colleague.
Scalise and three others were shot Wednesday morning at a baseball practice in Alexandria, Va.
A single rifle wound caused "substantial damage" to Scalise's internal organs and blood loss, his doctor explained Friday.
Sava said Scalise would need to undergo an additional operation within the next 48 hours and more beyond that.
The gunman, identified by law enforcement officials as 66-year-old James Hodgkinson of Belleville, Illinois, later died from injuries sustained during a shootout with police on the scene.
The bullet, Sava said, splintered into hundreds of pieces when it struck bone.
Republican Chuck Fleischmann of Tennessee scored in the first innings, enjoying a different sort of adrenaline than the one he experienced on Wednesday when he passed the gunman over bloodied ground to take shelter in a dugout. Scalise is a member of the team and had been fielding balls at second base in preparation for the game when he was shot. "Thank you, President Trump, for keeping your commitments".
Scalise's wife, Jennifer, issued a statement saying she was thankful for the "incredible amount of prayers and warm wishes" the family has received since the shooting.
The FBI said it was investigating the shooter's "activities and social media impressions" in the months leading up to the attack.
Hodgkinson contacted both of his state's Democratic senators frequently, always through email links on their websites, spokesmen said Friday. Capitol Police Officer Crystal Griner, who was shot in the ankle, is also at Medstar Washington Hospital Center.
Underscoring the day's mood, the Rev. Patrick Conroy, the House chaplain, opened the day by seeking divine forgiveness "when we seem to forget that words matter and can become seeds that will bring bitter harvest".
Bailey was spotted Friday in the Capitol, on crutches and out of uniform, accepting congratulations from fellow officers.