Hennessey, 34, who departed Selhurst Park earlier this month, was back-up for Wales number one Danny Ward at Euro 2020.
The Reds claimed a fourth successive win to further boost their hopes of sealing UEFA Champions League qualification
The Clarets beat Fulham 2-0 on Monday to confirm their Premier League safety, while Leeds saw off Tottenham Hotspur 3-1 last time out to move up to 10th.
Scott Parker’s men went into the game needing a win to avoid the drop, but yet again struggled in the final third and were unable to find the breakthrough
Iheanacho is paired alongside Burnley’s Chris Wood and Newcastle’s Allan Saint-Maximin for the attacking role.
The Red Devils are 14 places and 30 points better off than their visitors in the Premier League table, but have found the Clarets an unlikely bogey team on home turf in recent years.
It was a remarkable turnaround after Newcastle had been second best for almost a full hour, and one which could just transform their season
The Clarets won 1-0 in their last home league game against the visitors, but the Magpies recorded a 3-1 victory at St James’s Park in the reverse fixture earlier this campaign.
This weekend’s Premier League action sees Liverpool looking for revenge when they host Aston Villa on Saturday afternoon at 3pm, with the teams’ last meeting producing a shock 7-2 win for the Birmingham side.
Ralph Hasenhuttl’s side moved 10 points clear of the relegation zone with eight games left after a dramatic fightback at St Mary’s.
The Clarets, meanwhile, are looking to secure back-to-back away league wins for the first time since July 2020.
With fourth-placed Chelsea drawing at Leeds earlier in the day Carlo Ancelotti’s side had the chance to move within two points with a match in hand
Both sides failed to win against London clubs last weekend, with the Toffees losing to Chelsea – their first away defeat in the league since November – and the Clarets claiming their fifth successive home draw, this time against Arsenal.
The Gunners slumped to a 1-0 defeat in the reverse fixture at the Emirates Stadium, though, and Burnley could now complete a league double over Arsenal for the first time since 1962-63.
Iheanacho scored the Foxes’ first-half equaliser against the Clarets, a first-time volley after being found by a pass from Ndidi.
Leicester have lost to Slavia Prague in the Europa League and Arsenal in the top flight in the last week, and they may have feared the worst when they fell behind as Matej Vydra ended a league goal drought lasting 1,212 minutes.
Mikel Arteta’s men fought back from an early Youri Tielemans goal to score through David Luiz, Alexandre Lacazette and Nicolas Pepe, ending a three-game losing streak at the King Power Stadium in the top flight.
Spurs have lost five of their last six in the league to drop down into ninth position in the table, while Burnley currently occupy 15th position, just six points clear of the relegation zone.
The Baggies are currently 19th in the table, 12 points behind 17th-placed Newcastle United on the same number of matches, while Burnley are 15th in the division, now eight points clear of the relegation zone.
Just a few days ago, the Cottagers sat 10 points adrift of Premier League safety but they upset the odds to beat Everton at Goodison Park on Sunday for just their third win of the season before claiming a 1-1 draw at Burnley.