Thanks for writing us.
Currently TeamPulse product does not support linking problems to other problems. By problems I mean bugs, issues or risks. Into our Feedback Portal we already have submitted a feature request describing exactly the same feature. You may find it on the link below:
Please provide your vote there as this will raise the request's popularity and the possibility to be implemented as well.
Also as a workaround solution of your request from current perspective I may suggest you to use a common story that contains such bugs. The solution is not the best one but still this may help you until the functionality is provided by TeamPulse team.
the Telerik team