The 5'5" Dubliner came through the youth system at Deepdale to make 65 appearances in all, scoring three times. He also had a loan spell at Grimsby a year ago, scoring twice in 7 starts.
There was no guarantee that the 21-year-old would be involved in the Lilywhites' first team next season, which meant he "never had any doubts" about dropping down a division to join the Tigers.
As well as adding to the competition in central midfield, he will also provide much-needed cover for Andy Dawson and Stuart Elliott.
Keane has been capped at Under-21 level for the Republic of Ireland, so he has already had the chance to play alongside two of his City team-mates Damien Delaney and Ben Burgess.
Statistics from the FootyMad player database:
|Michael Keane (Preston) Information|
|Date of birth||29 December 1982||Height||5.6|
|Place of birth||Dublin||Weight||10.3|
|Recent Career History By Club (1999 onwards)|
|Team||Debut||Apps (+ sub)||Goals||Yellows||Reds|
|Recent Career History By Season (1999 onwards)|
|Season||First App.||Apps (+ sub)||Goals||Yellows||Reds|
|Appearances 53 (+ 18 as sub); Goals 5; Yellow cards 12; Red cards 0|