Dale Earnhardt Jr., holds his daughter Isla, 3, during driver introductions before the NASCAR Xfinity auto race in Richmond, Va., Saturday, Sept. 11, 2021. (AP Photo/Steve Helber)

New York Mets fans wear jerseys to remember the 20th anniversary of the 9/11 terrorist attacks before a baseball game against the New York Yankees on Saturday, Sept. 11, 2021, in New York. (AP Photo/Adam Hunger)

The New York Yankees and the New York Mets line up together along the baselines for the 20th anniversary of the 9/11 terrorist attacks before a baseball game on Saturday, Sept. 11, 2021, in New York. (AP Photo/Adam Hunger)

Navy's marching band performs at halftime during an NCAA college football game between Navy and Air Force, Saturday, Sept. 11, 2021, in Annapolis, Md. (AP Photo/Terrance Williams)

The Brigade of Midshipmen stand at attention during the National Anthem before an NCAA college football game between Navy and Air Force, Saturday, Sept. 11, 2021, in Annapolis, Md. (AP Photo/Terrance Williams)

To commemorate the 20th anniversary of 9/11, the 155th Air Refueling Wing of Lincoln, Neb., flies a KC-135 Stratotanker, center, alongside three F-16 Fighting Falcons flown by the 114th Fighter Wing of Sioux Falls, South Dakota, over Memorial Stadium during the playing of the national anthem before Buffalo plays against Nebraska in an NCAA college football game, Saturday, Sept. 11, 2021, in Lincoln, Neb. (AP Photo/Rebecca S. Gratz)

The pit crew of Noah Gragson (9) displays the U.S. flag during laps nine, ten and eleven during the NASCAR Xfinity auto race in Richmond, Va., Saturday, Sept. 11, 2021. (AP Photo/Steve Helber)

Dale Earnhardt Jr., comforts his daughter Isla, 3, during driver introductions prior to the start of the NASCAR Xfinity auto race in Richmond, Va., Saturday, Sept. 11, 2021. (AP Photo/Steve Helber)

The Brigade of Midshipmen stand at attention during the National Anthem before an NCAA college football game between Navy and Air Force, Saturday, Sept. 11, 2021, in Annapolis, Md. (AP Photo/Terrance Williams)

Leap Frogs airmen parachute into the stadium before an NCAA college football game, between Navy and Air Force, Saturday, Sept. 11, 2021, in Annapolis, Md. (AP Photo/Terrance Williams)

The Brigade of Midshipmen stand at attention during pre-game ceremonies before an NCAA college football game between Navy and Air Force, Saturday, Sept. 11, 2021, in Annapolis, Md. (AP Photo/Terrance Williams)

Former New York Yankees manager Joe Torre, left, and former New York Mets manager Bobby Valentine react after they threw out ceremonial first pitches before a baseball game Saturday, Sept. 11, 2021, in New York. (Andrew Mills/NJ Advance Media via AP)

The New York Yankees and the New York Mets line up together along the baselines for the 20th anniversary of the 9/11 terrorist attacks before a baseball game on Saturday, Sept. 11, 2021, in New York. (AP Photo/Adam Hunger)

Navy's marching band performs at halftime during an NCAA college football game between Navy and Air Force, Saturday, Sept. 11, 2021, in Annapolis, Md. (AP Photo/Terrance Williams)