The Arizona Diamondbacks signed Montero as an undrafted free agent in 2001 for a $13,000 signing bonus.
ðɪ ˌæɹɪzˈoʊnə dˈaɪəməndbˌæks sˈaɪnd mɔntˈɛɹoʊ æz ɐn ʌndɹˈæftᵻd fɹˈiː ˈeɪdʒənt ɪn tˈuː θˈaʊzənd wˈʌn fɚɹə dˈɑːlɚ θˈɜːtiːn,zˈiəɹoʊzˈiəɹoʊ zˈiəɹoʊ sˈaɪnɪŋ bˈoʊnəs.