bˈɔːlz ɑːɹ ɹᵻtɹˈiːvd baɪ ɐ spˈɛʃəlɾi kˈɑːɹt wɪð ɐ bɹˈʌʃ ænd ɹˈoʊlɚɹ ɐtˈætʃmənt ðæt ˌɔːɾəmˈæɾɪkli pˈɪks ˌʌp bˈɔːlz ænd ɐ kˈeɪdʒ ðæt pɹətˈɛkts ðə dɹˈaɪvɚ fɹʌm ˈɪŋkʌmˌɪŋ bˈɔːlz.
Balls are retrieved by a specialty cart with a brush and roller attachment that automatically picks up balls and a cage that protects the driver from incoming balls.