He fumbled three times last season , and that 's something the Broncos will want him to address as a rookie .
Booker 's ball security in those hurdles , but his leaping ability is remarkable .
Booker fumbled three times last season , and that 's something the Broncos will want Booker to address as a rookie .
Booker 's ball security in those hurdles , but his leaping ability is remarkable .