Arizona governor Doug Ducey opened the door for sport to return to the state without fans on Saturday following the COVID-19 outbreak, which has wreaked havoc globally.
The NBA, NHL and MLS seasons have been postponed, while the start of the 2020 MLB campaign has been delayed.
But Florida's Ron DeSantis became the second governor to clear the way for sport to resume on Wednesday.
"All these professional sports are going to be welcomed in Florida," DeSantis said in a news conference midweek. "That may not be the case in every other state in this country, as we've seen.
"So what I would tell commissioners of leagues is, if you have a team in an area where they just won't let them operate, we'll find a place for you here in the state of Florida. Because we think it's important and we know that it can be done safely."
The United States has been the hardest country hit, with more than 1.4 million confirmed cases and over 85,000 deaths.
Last week's UFC 249 event was held behind closed doors in Jacksonville, Florida, while WrestleMania 36 took place in Orlando.
"Our people are starved to have some of this back in their lives," DeSantis said Wednesday. "It's an important part of people's lives."
The campaign is set to restart on Thursday amid the COVID-19 pandemic, with 22 teams at the Walt Disney World Resort near Orlando to play eight seeding games and then the playoffs.
But with MLB's return quickly hampered by a number of positive tests in the Miami Marlins team, prompting postponements, NBA commissioner Silver is wary of potential complications in his own sport.
The league have plans in place for individual confirmed cases but would act swiftly should the virus pass through a confined campus, as happened in the Marlins' clubhouse.
"It's not an exact science, because nobody's ever done this before," Silver told Good Morning America on ABC. "We have plans in place where we might pause - similar to what baseball's doing now.
"Probably if we had any significant spread at all, we'd immediately stop and what we'd try to do is to track and determine where they're coming from and whether there had been a spread on campus.
"I would say, ultimately, we would cease completely if we saw that this was spreading around the campus and something more than an isolated case was happening."
Explaining this approach, Silver added: "It's health and safety first. That's always been our guidepost going into this.
"We've worked very closely with the Players Association and all the teams on this, and we know - it's one thing we've always pointed out - that it's about relative safety at this point.
"When you look at the high case rates not just in Florida but around the country - we also had significant numbers of players testing positive between the time we shut down the season and when we restarted - we jokingly have said, but maybe it's not so funny, that the safest place in the world may be on this campus at Disney.
"If that were to turn out to not be the case, we certainly would stop."
However, Silver is confident ahead of the restart, with the NBA taking a different approach to MLB, where players continue to travel the country to play at home stadiums.
He said: "The word 'anxious' would describe how I feel. We've been working at this for a long time, but there is a high case rate in Florida, down in Orange County where Orlando is.
"We're seeing what's happening in baseball with the Marlins, so it's something we're continuing to track very closely.
"Having said that, we have confidence in this protocol that we designed. It's not actually a sealed 'bubble', but everyone that's on that campus is tested on a daily basis.
"They're taking extraordinary precautions. The only time they're not wearing masks is when they're actually playing basketball.
"It's to the extent that when somebody tests positive, we'll obviously track them closely. We quarantine people when they first come down. So, we think we have a plan in place that should work."
