If poking is interrupting your matches then there's nobody to blame but yourself. You can either:
1. Close teamspeak
Or 2. Make your settings so that poking doesn't make the TS window jump to the front.
To do this, do the following:
1. Click settings -> options
2. Click the design tab.
3. Make sure the minimize to tray option is ticked
4. Click OK
Now when someone pokes you, all you see is dis!
That was so hard right? Now go enjoy some annoyance free hax :>