Bristol Rovers have sacked head coach Inigo Calderon following the team's relegation from League One. Burton's draw with Wigan on Tuesday confirmed Rovers' return to League Two following two seasons in the third tier.His final game in charge was a 4-1 defeat by Blackpool on Saturday, a ninth loss in 10 matches to end the campaign.First-team coach Miguel Llera has also left The Memorial Stadium.Calderon was appointed on Boxing Day but Rovers only won six of his 26 games in charge and they finishe