Munster flyhalf Ian Keatley came back to haunt his former club as he finished with a personal haul of 14 points in their 24-9 Pro12 win over Connacht at Thomond Park.

The 24-year-old left Connacht in the summer after a three-year spell out west at the Sportsground.

And given his chance with Ronan O'Gara rested after his Heineken Cup exertions, Keatley produced an impressive display orchestrating the Munster backline.

Fullback Sean Scanlon and Tomas O'Leary both crossed in five first-half minutes to give the home side a comfortable 18-3 lead at half-time.

Niall O'Connor managed three penalties for the visitors but missed the same number as Connacht missed out on the chance of a losing bonus point.

And two more second-half penalties from Keatley were enough to keep the visitors at a distance.

Keatley put two early penalty misses behind him as he slotted penalties on 17 and 24 minutes to give Munster a 6-0 lead.

O'Connor halved the deficit with a penalty of his own just before the half hour but that was as close as it got for the Galway outfit.

Scanlon, on his Pro12 debut at fullback, grabbed the game's opening try two minutes later, with Keatley converting to make it 13-3.

And five minutes later O'Leary stretched the lead further as he went over, Keatley's missed conversion emulated by O'Connor with a penalty attempt two minutes later.

The visitors made the brighter start to the second half but O'Connor and Keatley traded two penalties apiece to make it 24-9 just before the hour.

John Hayes, on his 217th and final appearance for Munster, departed on 59 minutes to a standing ovation to be replaced by BJ Botha.

Shortly after Donncha O'Callaghan paid the price for repeated Munster infringements as he was sent to the bin, but it made little difference to the home side as Connacht were kept scoreless while they had an extra man.

Munster will be disappointed with their inability to cross the tryline in the second half, missing the opportunity to draw level on points with the Ospreys as they claimed four points which was enough to jump back into third ahead of Glasgow.

The scorers:

For Munster:
Tries: o'Leary, Scanlon
Con: Keatley
Pens: Keatley 4

For Connacht:
Pens: O'Connor 3

The teams:

Connacht: 15 Gavin Duffy (captain), 14 Fetu'u Vainikolo, 13 Eoin Griffin, 12 Dave McSharry, 11 Tiernan O'Halloran, 10 Niall O'Connor, 9 Frank Murphy, 8 John Muldoon, 7 Johnny O'Connor, 6 Dave Gannon, 5 Mike McCarthy, 4 George Naoupu, 3 Ronan Loughney, 2 Ethienne Reynecke, 1 Brett Wilkinson.
Replacements: 16 Adrian Flavin, 17 Dylan Rogers, 18 Rodney Ah You, 19 Mick Kearney, 20 Eoin McKeon, 21 Paul O'Donohoe, 22 Matthew Jarvis, 23 Kyle Tonetti.

Munster: 15 Sean Scanlon, 14 Luke O'Dea, 13 Keith Earls, 12 Danny Barnes, 11 Simon Zebo, 10 Ian Keatley, 9 Tomas O'Leary, 8 Paddy Butler, 7 Niall Ronan, 6 Billy Holland, 5 Mick O'Driscoll capt, 4 Donncha O'Callaghan, 3 John Hayes, 2 Denis Fogarty, 1 Marcus Horan.
Replacements: 16 Sean Henry, 17 Dave Kilcoyne, 18 BJ Botha, 19 Ian Nagle, 20 James Coughlan, 21 Duncan Williams, 22 Scott Deasy, 23 Tom Gleeson.

Referee: Dudley Phillips (Ireland)
Assistant referees: John Carvill (Ireland), Brian MacNeice (Ireland)
TMO: Kevin Beggs (Ireland)