After a bad performance at the US Open which saw her exit the tournament, Jarmila Gajdosova was devastated after some of the abusive tweets left on Twitter.

Jarmila lost to unseeded American Vania King 6-2 6-0. Her performance was not helped by the fact she made 47 unforced errors.

Some 'fans' decided they didn't like the way she played and voiced their disapproval on Twitter with some remarks being obscene racist and sexist abuse. Jarmilla was reported to be feeling devastated.

Fans are very unforgiving. Once you set a benchmark, they expect you to keep it or out-do it. It's important to get your head around this as who controls who. Do they control you or do you control your reaction to them?

While it is disappointing a few 'fans' have to voice their disapproval, this appears to be the way things are going with so many people having access to social media and are able to be anonymous.

When you are a 'star' with followers, you have to expect the best and the worst.

It's critical to get your head around both - especially the worst.

Learn how to control how you feel. Stay focused on why you do what you do. Are you going to stuff up? Of course. Learn from it so you continue to improve.

It's going to be interesting to see how Jarmila performs the next time she plays singles. Let's hope she can move on.

For many, once they start losing and get abused, they place pressure on themselves to keep performing to the desired level. Pressure generally brings tension which in turn brings failure (and possible injury). Their confidence drops - making it harder to get back.

While it's enticing to read what people have to say about you, I suggest getting someone to edit what you read and what you never have to see. Only read that which is going to help you on your journey.

If you have to read the negative, put it into perspective. Who is to say they are right?

I'm willing to bet the people who slammed Jarmila don't even play tennis and are the armchair critics who believe they can do better than anyone else.

I'd say to them - "Grab your racquet and let's go and have a game. If you beat me, I'll listen to you. If you don't ..." You know what I mean :-)