Simplify the following text for a Grade 8 native English-speaking person.
Original: After Muir , Robinson attended Pasadena Junior College ( PJC ) , where he continued his athletic career by participating in basketball , football , baseball , and track .
Simplified: After Muir , Robinson went to Pasadena Junior College ( PJC ) . There he continued his sports career by playing basketball , football , baseball , and track .