By RONAN O’BRIEN

ULSTER slipped down the Conference B standings as Sean Cronin’s first-half double helped Leinster to a bonus point derby win at the RDS.
Conor O’Brien and Andrew Porter also breached the try-line as the champions sealed the bonus by half-time, while the brilliant Jamison Gibson-Park also crossed.
“Thankfully we got a few good scores in the first-half, but at half-time we knew we had to work hard against a quality side like Ulster,” said try scorer O’Brien.
Ahead of next week’s key Champions Cup games both sides gave their extended...