In a new DVD titled 'Mitchell Johnson: Bouncing Back,' the pacer, who has tormented India with both bat and ball in the ongoing Test series in Australia, has spoken about the importance of instilling fear in the rivals.
"Sometimes we say stupid things when we're out there. Sometimes we try and say things that hopefully get into the batsmen's heads a little bit. We try to get them to think about their feet, or just let them know you are going to bowl another short ball. It's all mind games," Johnson was quoted as saying in the DVD by 'ESPNCricinfo'.
Johnson was involved in an on-field spat with the Indians in the second Test in Brisbane where the visitors' attempts at sledging him backfired badly.
The tearaway bowler smashed 88 runs and came back to grab four wickets to help Australia win the match and take a 2-0 lead in the series.
Johnson feels aggression channelled well can yield good results.