It is possible that the VM was exported with ovftool using the --compress argument, so the Host Client is unable to deploy them because the ESXi host expects the uncompressed disk images to be uploaded. Unfortunately, there seems to be no good way to un-gzip those disk images using the web browser at the moment.
So I had to use the ovftool to deploy on my ESXi and I was able to delpoy it successfully.
To use the ovftool for deployment, download the latest version 4.2 from the VMware suppport site. The OVFtool can run on linux, mac or windows OS. Once installed you can use
/Applications/"VMware OVF Tool"/ovftool -ds=datastore3 -n=ClearPass ~/Documents/ClearPass/Images/CPPM-VM-x86_64-6.5.0.71095-ESX-80G-CP-SW-EVAL-ovf/CPPM-VM-x86_64-6.5.0.71095-ESX-80G-CP-SW-EVAL.ovf vi://192.168.1.10
-ds --> datastore name
-n --> Name of the VM
/Applications/"VMware OVF Tool"/ovftool --> Ovftool path in mac. Will be different on linux and windows
~/Documents/ClearPass/Images/CPPM-VM-x86_64-6.5.0.71095-ESX-80G-CP-SW-EVAL-ovf/CPPM-VM-x86_64-6.5.0.71095-ESX-80G-CP-SW-EVAL.ovf ---> Path for the Clearpass image that you want to deploy
vi://192.168.1.10 ---> My esxi server
you can usel "ovftool --help" to checkout other paramters that you can pass with the ovftool