Significant going changes at Goodwood and Navan after heavy overnight rain

Willie Mullins launches a seven-strong challenge in the Irish Cesarewitch at Navan (4.25) as he bids to complete a stunning weekend Cesarewitch double following Low Sun's success at Newmarket on Saturday.

Read the Racing Post's Irish Cesarewitch preview

Heavy rain has altered ground conditions significantly overnight at Navan with the description changed to yielding, good to yielding in places (from good, good to firm in places) following 22mm in the past 24 hours.

In Britain, Chepstow's Persian War Novices' Hurdle (3.25) is Sunday's feature, and the Grade 2 has been won by the jumping stars Reve De Sivola, Silviniaco Conti and Blaklion in recent years. This year a competitive field of eight runners are seeking victory in South Wales. The Kim Bailey-trained Minella Warrior is the current favourite.

Key trainer quotes for Sunday's action at Chepstow

Charbel, Barney Dwan and the consistent Baron Alco are among the runners in the valuable handicap chase also on the card (5.10), and the Veterans' handicap is also of particular interest (4.00).

Action also comes from Goodwood and Limerick.

Going report

Navan (first race at: 1.35)
Yielding, good to yielding in places (from good, good to firm in places)

Limerick (1.50)
Good, good to yielding in places

Goodwood (2.00)
Soft (from good) (GoingStick 6.7 at 8.20am on Sunday)

Chepstow (2.15)
Good to soft, soft in places on hurdles course (from good, good to soft in places) (GoingStick Hdl 6.0, Chs 6.2 at 6.30am on Sunday)

Market movers

2.25 Limerick: Mysloegin 4-1 (from 5)

2.40 Navan: Lost Treasure 6-4 (from 13-8)

3.00 Limerick: Robin De Carlow 4-1 (from 9-2)

4.35 Chepstow: I'm A Game Changer 9-2 (from 11-2)

What to back

Take a look at Pricewise tips on the day's racing (£) and you can read the thoughts of our regional experts here.

What to read

Review Saturday's action from Newmarket which includes Too Darn Hot's exceptional Dewhurst win.

Limerick stages the Munster National on Sunday afternoon (4.25) and these questions may help you unearth the winner.

What to watch

With a star-studded team heading to Champions Day on Saturday, trainer John Gosden talks through his runners.

The best of Racing Post Sport

The Nations League continues into next week and our team of football experts have given a few tips for the international action in the latest Postcast.

Final thought

It's not every day you get to see the likes of Richie McLernon, Jeremiah McGrath and Nick Scholfield riding at Goodwood but they are taking part in the Alderbrook Handicap (2.00), a Flat race for jump jockeys.

For the freshest betting advice, based on latest going and market conditions, don't miss the Live Tipster every afternoon. Just click Raceday Live at racingpost.com or the mobile app