Plant ID Help - Sugar Apple?

[DelandTropicals]

I had a green sugar apple that had been beaten back by the winter this year. It had not started growing back but next to it another tree has. I assumed this was a seed that germinated from fruit drop but the leaf structure is completely different. I don't think the original plant was grafted, I got it from A Natural Farm. Is this new growth something I should keep or should I just tear this out and start over?

[pinkturtle]

The leafs look like BlackBerry too me not sugar apple.

[Kevin Jones]

Not Sugar Apple... not sure what it actually is though

Kevin

[DelandTropicals]

Thanks guys, must of been something from a bird or the wind!