Deacon converted and added another penalty when he was held down in the tackle by Calderwood.
The 25-year-old was injured after a tackle by Newcastle's Danny Guthrie in Hull's 2-1 victory at St James' Park.
The Wales star fell awkwardly after a tackle by the Dragons' Jason Tovey in Wednesday's 26-12 Magners League win.
Kakuta went off at half-time after a tackle by Ryan Taylor, while Kalou himself was replaced in the 56th minute.
Murphy punished some a dreadful attempt of a tackle by Carr to score Munster's opening try in the 20th minute.
The striker suffered a broken leg in the third minute after a tackle by Martin Taylor, who was sent off.
"We love them, they are our favorite animals, " said Shenal Kaya, a young man who sold fishing tackle by the waterside.
But Henson almost made it a fairy-tale return, denied a try only by a stunning tackle by Wasps scrum-half Joe Simpson.
Dimitrios Papadopoulos earned a penalty when he was bundled to the floor by a clumsy tackle by Millwall skipper Stuart Nethercott.
The Fulham striker was injured in a tackle by Karl Henry after 28 minutes and faces four months on the sidelines.
The Scotland forward ran in on goal, dodging a mistimed tackle by Joe Ledley to slot the ball past goalkeeper Tom Heaton.
But a brilliant tackle by Vincent Clerc forced Ali Williams's feet into touch as he tried to go over in the corner.
Van Nistelrooy almost set up Paul Scholes, who had been ineffective, but he was denied by a good saving tackle by Luisao.
BBC: SPORT | Football | Europe | Manchester United 2-1 Benfica
McGuire soon added another try for the home side after the interval when he pulled out of an attempted tackle by Paul Wood.
Kalou twice almost got in on goal while a superb last-ditch block tackle by Phil Bardsley denied the Ivorian his second goal in two games.
James Hook passed to full-back Byrne who showed an electric burst of pace to evade an attempted tackle by Jamie Heaslip and score in the corner.
He avoided a tackle by Olave, fought off a shoulder challenge by Markus Holgersson and slid the ball past a sliding Robles for his team-high sixth goal.
Ramsey, who was injured in a tackle by Stoke's Ryan Shawcross started his first game for Arsenal last weekend after loan spells at Nottingham Forest and Cardiff.
Harinordoquy found 18-stone Bastareaud charging forward at his left shoulder and the 21-year-old evaded a desperate tackle by Kelly Brown to claim his second try of the game.
He avoided a tackle by Olave, fought off a shoulder challenge by Markus Holgersson and slid the ball past a sliding goaltender Luis Robles for his team-high sixth goal.
Sean O'Brien found a gap in the Edinburgh defence and a made a break for the line but a last-ditch tackle by Paterson prevented Leinster registering their first try.
But the Blues were just too good and went further ahead when James produced a remarkable finish, dotting down despite being spun about in a grapple tackle by Ryan Lamb.
Ramsey signed a new long-term Arsenal deal in June 2010 - a boost after he suffered a double leg break following a tackle by Stoke City defender Ryan Shawcross in February.
The Merseysiders seemed intent on curing that weakness as they quickly set about Wigan and only a last-ditch tackle by defender Antolin Alcaraz denied Cahill a shot from a promising position.
At the other end, Liverpool felt they should have been awarded a penalty for a mis-timed tackle by Richard Dunne on Dirk Kuyt, but referee Lee Probert waved away their appeals.
Wigan kept its hope of survival alive with a late 2-1 win over Newcastle in a game which was marred by an awful tackle by Callum McManaman on visiting defender Massadio Haidara.
Further pressure from the Exiles yielded a fourth penalty but a head-high tackle by Delon Armitage on the flying Doug Howlett enabled O'Gara to trim the gap to 15-6 at the break.
He suffered the injury in a tackle by Stephen Moore, although the Wallaby hooker was not at fault as Czekaj's studs caught in the turf and his leg twisted horribly under him.
However, there was a stage when the Arsenal boss believed his striker would not fully recover from the horrific injury he suffered following a tackle by Birmingham's Martin Taylor on 23 February 2008.
David Strettle was denied a moment of glory by a try-saving tackle by James Simpson-Daniel with just yards to spare before Nick Wood's yellow card ensured a nail-biting finish for the Kingsholm faithful.
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