Kris Jenner has rubbished reports that Rob Kardashian has entered rehab.

The 59-year-old reality TV matriarch has said that the rumours that her son checked into a 60-day Palm Beach rehab centre for alcohol and drug abuse were ''completely fabricated'', according to ET.

Kris also took to Instagram last night (29.05.15) to reveal how ''proud'' she is of Rob, having designed a range of socks along with Arthur George.

Along with a picture of a pair of socks with the words ''Bad A*s'' emblazoned on them, Kris wrote: ''Great meeting this morning @robkardashian so proud of you and @arthurgeorge87 !!! You are amazing!!!! #earlybirdcatchestheworm #proudmama #love''.

Gossip Extra originally revealed that Rob had checked himself into the rehab clinic.

The source said: ''Rob is in good spirits and has a positive mindset. He quietly checked into a beachside Palm Beach County drug and alcohol in-patient rehab center over the weekend.''

The website also claimed that celebrity bodyguard Mark Behar - a friend of Rob and his sister Kim Kardashian West - went on to say that he spoke to Rob just before he checked himself in, and thinks he'll lose between 10 and 20 lbs within weeks.

He said: ''He told me, 'This is it, I just need to stick with it and do this. His regiment includes weight loss and physical training. Rob will probably lose 10 to 20 pounds within the first few weeks by just being in rehab and daily programs relating to his detox.''