So there I was sitting on my sofa eating a bag of Onion Rings watching the 4x100metre heats and I didn't expect to watch carnage.

Neither US squad made it to the final and both times it was the change between the top bend runner and the home straight runner than went awry.

For the women it was a problem as the incoming runner slapped the baton into the outgoing runners hand and let go before the outgoing runner grasped it. For the men it again the incoming runners fault. Tyson Gay put his arm back but the incoming runner just couldn't find it and out when the American's.

So it all set up for a great chance for us to defend our title, right? Wrong. Team GBR were DQ'd for their final change in the heat. It was the fault of Craig Pickering who went off far too early and was out of the changeover box before Marlon Devonish could catch up and pass him the baton.

It was quite a few minutes of athletics. It was really a case of 'how not to run a relay' race from several squads. At least the British woman made it to the final!

Lisa Dobriskey is starting to challenge Rebecca Adlington as the GB female athlete who doesn't know just how good they are and are far too modest for their own good.

The 1500metre runner cruised through to the final as the third fastest runner and looked very comfortable in doing so. Her finish looks extremely strong and she has a kick that could seriously challenge for a medal and maybe a seriously good medal at that.

Kelly Holmes won in Athens so the question is whether Dobriskey can carry on the Team GB flame. Holmes was expected to do well and came into the games as one of the favourites. She had already won the 800metres when she lined up for the 1500 so her confidence was high. Dobriskey though doesn't have that self-confidence underneath her but she does have the ability.

Could this be yet another surprising medal for Team GB?

The Men's 4x100metres replay start today and Team GB will be defending the gold that they won four years ago.

Jason Gardner, Darren Campbell, Marlon Devonish and Mark Lewis-Francis took the baton around the track in 38.09s to stun the American's who were the red hot favourites. It was a triumph for exemplary baton passing as the American's were quicker but screwed up the change between leg two and three in a big way that allowed the Brit's to sneak in.

Even the Nigerian's had a shot but they had a really bad change between legs three and four and Mark Lewis-Francis ran the glory leg and made it, but only just. Another metre or so and Maurice Greene would've had him but the race is 400metres long and not 401 and that was just about the perfect amount for Team GB.

Our chances in 2008 aren't anywhere near where they were in 2004. To qualify for the final would be an achievement as GB sprinting has gone backwards over the past few years. It was the biggest surprise of the games in Athens and a repeat would be immense – sadly it looks to be a question of just how fast the Jamaicans can go.

Those that know me will know that I’m one of the most cynical folk they’ve ever met. This trait of mine has come out in a big way recently as I’ve watched the Jamaican sprint team tear up the track.

Usain Bolt had led the way but in the women’s 100m the whole podium was full of Jamaican’s. Shelly Ann-Fraser took the gold with Sherone Simpson and Kerron Stewart following her. Both Simpson and Stewart collected silver’s as they finished in a dead heat for second, no bronze was awarded.

Bolt’s two new World Record’s are something else but whenever a country goes forward so suddenly and with such a giant step it brings out the cynical side of me. I hope what I’ve witnessed over the past couple of days was for real and with the Jamaican’s expected to dominate the woman’s 200m tomorrow – if they manage to then they’ll of won all four sprint races here in Beijing and no doubt they’ll be the favourites for both men and women’s 4x100metres relay as well.

I (unsurprisingly) have no evidence but it is just a hunch. Some may think that it is sad that I think this way and can’t just celebrate the great achievements but we’ve seen it all before and when everything comes out in the wash there is usually something foul going on.

Quite simply put - This kid is from another planet.

Usain Bolt ran 20.5 as a 15 year-old for the 200metres and they said that it was his destiny to win Gold at the Olympic Games. Now a day short of his 22nd birthday the Jamaican is a double Olympic Gold medallist and holds both the 100 and 200metres World Record.

Michael Johnson's 19.32 was a time that I thought would not be beaten in my lifetime. At home in Atlanta Johnson blew away the field to totally obliterate the old 19.66 World Record in a time that pundits thought was unachievable. Just twelve years later and on the other side of the Globe that time itself was beaten.

Bolt had cruised to victory in his lesser event of 100metres at the weekend and seemed to even be slowing down as he celebrated well before he crossed the line. His time was 9.69 which was the second fastest time in history and was a World Record (Tyson Gay had run a wind assisted 9.68 earlier in the season).

Everyone knew he was going to blast to glory in the 200metres final but the only question in most people's mind was whether he could break Johnson's record. The American himself is a BBC Pundit and didn't think that he could do it – but boy he was wrong.

19.32 was rounded down to 19.30 and the record was broken. Johnson was happy that such a great athlete had taken his record but was keen to keep his 400metre record. Bolt went for his lap of honour and will now go down as one of the greats and he's only 22 years of age.

Just where can he go from here? The answer is even faster, a lot faster...

So female Russian athletes were cheating - whodda thunk it?

However the way the IAAF went about catching them was pretty cool in the extreme - this has to be one of the best drug busts in recent times.