Selection issues in the loose forwards for the Blues after their win over the Hurricanes in Super Rugby Pacific.
Number eight Hoskins Sotutu has been suspended for three weeks after being sent off for a dangerous tackle against the Hurricanes..
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The tackle on his Hurricanes opposite Peter Lakai occurred late in the match and meant the Blues finished the match, which was their first win of the season, with 14 players.
The three game ban means the Blues will be without Sotutu for three vital games.
They face the Brumbies this week in Auckand and then away to the Chiefs in Hamilton and then host the Crusaders at Eden Park.
However he could return a game earlier if he takes part in the a coaching intervention programme as a substitute for the third game.
The Super Rugby Judiciary ruled the foul play was a mid-range offence with a starting point of six weeks suspension but with Sotutu accepting the charge and his previous disciplinary, a 50 percent reduction was applied.
The Blues could also be without another loose forward with Dalton Papali'i under an injury cloud after he took a head knock in the Hurricanes game