Siena have sent Daniele Portanova to Bologna in a swap for defender Claudio Terzi.
Defender Portanova ends a five-year reign at the Stadio Artemio Franchi, having played 158 games for Robur.
As for 25-year-old Terzi, he was a Bologna youth product and made his debut for them in 2002, spending just one season on loan at Napoli in 2004-05.
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