Engine Swap Transmission Compatability

The motor in my 2002 Celica GT blew and I have already purchased a used motor to swap out the old one. My question is that my car is an automatic and the engine came with a clutch plate on it obviously from a manual transmission. Will I have any problems merrying up this new motor back to my automatic transmission? Should I be worried about anything not working properly?

Please let me know...any help would be appreciated. Thanks in advance