Simplify the following text for a Grade 11 native English-speaking person.
Original: After receiving her permission , Commissioner Bud Selig not only allowed Griffey to wear the number , but also extended an invitation to all major league teams to do the same .
Simplified: After receiving her permission , Commissioner Bud Selig not only allowed Griffey to wear the number , but also gave an invitation to all major league teams to do the same .