Claudio Lotito believes Miroslav Klose and Djibril Cissè are “our jewels to bring Lazio back to the top level in Italy and Europe.”
The Biancocelesti have been active on the transfer market this summer and added the strikers with international experience.
“This is an important day, as we are presenting our jewels to the public,” said President Lotito at the start of pre-season training.
“We are showing the potential that can give us a different push going into the new season. We have signed Klose and Cissè, hoping they will be decisive in terms of physique, quality, character and experience.
“They can help bring Lazio back to the top level in Italy and Europe.”
Klose was a free agent after his contract expired with Bayern Munich, while Cissè rejected Premier League proposals to move from Panathinaikos.
“I appreciated Klose's moral qualities, as he is a very professional figure who will give this team a step up in quality.
“I have to thank Cissè, as he had other offers, but firmly wanted to join Lazio. He wishes to prove his worth in Serie A after recovering from two very serious injuries. He has great strength of character.
“With Cissè and Klose in attack, Lazio will go far.”
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