By Daily Mail Reporter PUBLISHED: 09:12 EST, 6 November 2013 | UPDATED: 14:48 EST, 6 November 2013 Suspended Miami Dolphins linesman Richie Incognito was acting under orders from his coaches' to ‘toughen up’ Jonathan Martin when he subjected his teammate to a torrent of abusive voice mail and texts messages, claim sources close to the camp. It has been revealed that after Martin missed two days of organized team activities (OTAs) last spring, coaches encouraged Incognito, the offensive line's undisputed leader, to ‘get [Martin] into the fold.’ Just days later Incognito left a threatening, and racially offensive voice mail in which he called Martin, who is bi-racial, a ‘half n*****,’ threatened to slap his mother across the face and uttered the words ‘I'll kill you.’
@highlight
Richie Incognito, 30, was carrying out coaches' orders when he sent threatening messages to Jonathan Martin, claim sources within the team
@highlight
Incognito was suspended indefinitely on Monday morning over allegations that he bullied teammate Martin, 24
@highlight
The linesman is alleged to have sent Martin a series of racist and threatening text messages and voice mails
@highlight
Martin took a shock leave of absence from the team last week citing bullying as the reason
One source said any emotional issues @placeholder is experiencing are directly related to his harassment.