Reminder to use ovftool to create an ova / ovf image of a virtual machine with VMWare player.
The tool seem provided with WMWare Player (e.g. under Windows)
C:Files (x86)Player\\OVFTool\\ovftool.exe -h
ovftool [options] <source> [<target>]
So, to make a .ova file of your vm :
ovftool Source.vmx Destination.ova