Even if he does clear his name legally, it might not socially. Just recently, although this is not football related, a voice actor was the victim of a concerted campiagn to ruin his reputation by a jilted ex-girlfriend and another who was also an ex but a stalker as well. He was accused of - if I remember correctly - sexual misconduct by these women, who also created fake accounts and doctored photos to make it out like he was. He was later exonerated in court just recently, but he was still dropped by the companies he was doing voice work for, after. But not just that, he was completely replaced, they redubbed the characters in the games. This could well happen to Giggs, who already has a bad reputation because of his infidelity and lack of loyalty. He might be declared innocent, but in the eyes of society, he's guilty anyway.