Derby County have re-signed defender Jason Shackell from fellow Championship rivals Burnley.
The 31-year-old centre-back has joined Derby on a three-year contract, with the Rams paying an undisclosed fee to the Lancashire club.
Shackell is no stranger to Derby, after spending a season with the club during the 2011/12 campaign.
He appeared on 49 occasions in all competitions, before moving to Turf Moor in July 2012.
Derby County have signed Andreas Weimann from Aston Villa, on a four-year-deal.
The Austrian international forward has signed for an undisclosed fee after falling out of favour at Villa under Tim Sherwood.
Weimann has been capped 13 times by his country, and has more than 100 Premier League appearances to his name.
New Derby head coach Paul Clement told the club website:
It goes without saying that we are very pleased to welcome Andreas Weimann to Derby County and we very much look forward to working with him.
He has a good amount of top flight experience to his name and, at the age of 23, he still has a lot of potential.
Andreas is an exciting talent and he will be a positive addition to the squad, along with the recent signings of Darren Bent, Alex Pearce and Scott Carson.
Clement: taking on his first managerial role is "a big step". Got lot of confidence & belief from working with Carlo Ancelotti. @itvcentral
The new Derby County Head Coach has an impressive CV, winning some of football's biggest trophies during his coaching career.Read the full story ›
Derby County have confirmed the appointment of Paul Clement as their new Head Coach.Read the full story ›
Former Derby County forward, Roger Davies, says he believes the uncertainty over the future of Steve McClaren may have been the reason for the club's slump towards the end of the season - which saw the Rams miss out on the play-offs - and ultimately the sacking of McClaren.
Rumours linking McClaren to the job at Newcastle circulated since January, coinciding with the club's dip in form.
Derby County fans have given a variety of different views on the sacking of head coach Steve McClaren.
Some said they think he should have had another season to finish the job he started in 2013, but others thought he'd lost the trust of supporters, so he had to leave.
Derby County Football Club are on the hunt for a new manager after they sacked former boss Steve McClaren yesterday.
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Steve McClaren says he's "very disappointed" by Derby County's decision to terminate his contract.Read the full story ›
Derby County fans have been tweeting their reaction to the news that Steve McClaren has been sacked from his position as head coach.Read the full story ›