CLICK HERE for pictures from the Mugello MotoGP test, taking place today (Monday).

The pictures include Sylvain Guintoli making his MotoGP return with Pramac Ducati - and World Superbike star Leon Haslam sitting on the BMW-powered Marc VDS Suter.

The Marc VDS Suter is a (1000cc) CRT motorcycle being developed for the 2012 MotoGP World Championship.

The bike is being tested by former MotoGP rider - and present Marc VDS Moto2 racer - Mika Kallio, but Haslam's presence is sure to spark some rumours.

Mugello marks the first time that a CRT entry has attended an official MotoGP test and will allow for a direct comparison with 800cc grand prix pace.

The test was originally due to feature 1000cc factory bikes in the hands of MotoGP riders, but Yamaha, Honda and Ducati subsequently decided to wait until Brno in mid-August to go head-to-head.